Pope Clement XII (1652-1740)

The Pope Who Condemned Freemasonry

Clement XII’s primary significance is doctrinal and historical. It was under his reign that the Church first encountered, as an organized adversary, speculative Freemasonry, which originated in London in 1717 and spread throughout Europe in less than twenty years.^[16] By the bull In eminenti apostolatus specula of 28 April 1738, the pope forbade Catholics from any membership in lodges, under penalty of excommunication incurred by the very deed itself, from which only the sovereign pontiff can absolve, except at the hour of death.^[17]

This condemnation was not an isolated episode: it inaugurated a consistent doctrine. Benedict XIV would confirm it by the bull Providas Romanorum (1751), and Leo XIII would systematize it in the encyclical Humanum genus (1884).^[18] Clement XII thus alone opened one of the great dossiers in the modern history of the Church confronting secret societies.

The Reformer After the Coscia Scandal

The second feature of his reign was the clean-up of a corrupt administration. Under Benedict XIII, real power had been monopolized by a venal favorite, Cardinal Niccolò Coscia, whose embezzlements had ruined the Treasury and scandalized Rome.^[19][20] From his election, Clement XII broke with this system: he had Coscia brought to justice, demanded restitution of the embezzled sums, and restored order in the Apostolic Camera.

This reform came at a cost. To cover the deficit, the pope reinstated the public lottery that Benedict XIII had suppressed on moral scruples—a practical decision that brought in nearly half a million écus annually and financed the major works of the pontificate.^[21][22]

The Builder of Late Baroque Rome

The third characteristic was artistic patronage. Despite the blindness that afflicted him from 1732, Clement XII pursued a policy of major construction projects that left a lasting mark on Rome’s face: the Trevi Fountain, begun in 1732 following Nicola Salvi’s designs; the new façade of Saint John Lateran, entrusted to the Florentine architect Alessandro Galilei; the sumptuous Corsini Chapel in the same basilica; and the purchase of Cardinal Albani’s collection of antiquities, which gave rise to the Capitoline Museums.^[23][24]

This paradox—a blind pope who beautified his city like no other—summarizes the entire pontificate: a failing body serving an intact will.

Clement XII’s reign is documented by pontifical acts, the archives of the reformed Apostolic Camera, the Coscia trial files, the text of the anti-Masonic bull, and the abundant diplomatic correspondence of the War of the Polish Succession. As with any pope of the modern era, the historian must cross-reference these sources and distinguish the encyclopedic entry from critical study.

Reading a Builder Pope Without Hagiography or Denigration

Clement XII did not inspire a black legend. The opposite risk is a purely aesthetic reading that would reduce his reign to a gallery of Roman monuments. The honest method is to measure the real scope of his acts—the Masonic condemnation, financial reform, doctrinal firmness, patronage—based on official documents and critical history, foremost among which is the monumental History of the Popes by Ludwig von Pastor, written from Vatican archives.^[25]

The Corsini Family

The Corsini are one of the great patrician families of Florence. Lorenzo was born on 7 April 1652, son of Bartolomeo Corsini, Marquis of Sismano and Casigliano, and of Elisabetta Strozzi, allied to one of the most illustrious Tuscan houses.^[26][27][28] The family already counted a saint: Andrew Corsini (1302 – 6 January 1373), a Carmelite and bishop of Fiesole, canonized in 1629 — a spiritual ancestry of which the future pope would be proud.^[29]

Lorenzo was also the nephew of Cardinal Neri Corsini (1614–1678), his father’s brother, who bequeathed to him a rich library. This noble birth, this heritage, and these curial connections immediately paved a Roman path for the young Florentine.^[30][31]

Studies, Renunciation of Primogeniture, and Entry into the Ecclesiastical State

Educated by the Jesuits at the Roman College, Lorenzo Corsini then obtained a doctorate in law from the University of Pisa.^[32] Initially destined for a secular career, he did not immediately embrace the ecclesiastical state. It was only after the death of his uncle, then his father, that a turning point occurred.

In 1685, at the age of thirty-three, Lorenzo renounced his right of primogeniture in favor of his brother and entered the ecclesiastical state.^[33] According to the custom of the time, he purchased from Innocent XI, for thirty thousand écus, a prelatic office, and devoted his fortune and leisure to enriching the library inherited from his uncle.^[34]

General Treasurer and Cardinal

Appointed titular archbishop of Nicomedia on 10 April 1690 by Alexander VIII^[35], Corsini was designated nuncio to Vienna, at the imperial court, in 1691.^[36][37] In 1696, he received the difficult post of general treasurer of the Apostolic Camera and governor of the Castel Sant'Angelo — a prominent position placing him at the heart of papal finances and giving him intimate knowledge of the administration of the State.^[38][39]

On 17 May 1706, Clement XI created him cardinal, with the title of Santa Susanna; he later moved to San Pietro in Vincoli, then became cardinal-bishop of Frascati (1725).^[40] At the death of Benedict XIII, it was therefore an elderly prince of the Church, seventy-eight years old, rich with half a century of curial experience, who figured among the papabili — despite his age and already failing eyesight.

The Death of Benedict XIII and the Shadow of Coscia

Benedict XIII (Pietro Francesco Orsini), a Dominican pope and holy man, died on 21 February 1730. His reign had been tarnished by a serious defect of governance: he had abandoned temporal administration to his former collaborator from Benevento, Cardinal Niccolò Coscia, whose venality and malfeasance had outraged Rome and emptied the Treasury.^[41][42] The conclave that opened was therefore marked by an expectation: to restore order and morality to the court.

A Long and Divided Conclave

The cardinals entered the conclave in a Sacred College divided among the factions of the crowns — France, Spain, Empire — and the party of prelates concerned with independence. No candidate quickly imposed himself. The conclave lasted four months, one of the longest of the period.^[43] Corsini’s advanced age and failing eyesight were the only obstacles to his election; otherwise, he appeared as the best possible choice, according to the Catholic Encyclopedia.

“After four months of deliberations, the Sacred College united on Cardinal Corsini, the best possible choice, were it not for his seventy-eight years and failing eyesight.” — Catholic Encyclopedia (1908), entry “Pope Clement XII”^[44]

The Election of 12 July 1730

On 12 July 1730, Cardinal Lorenzo Corsini was elected pope; he was enthroned on 16 July.^[45] He chose the name Clement XII, in homage to Clement XI, who had raised him to the purple. The compromise that brought him to the throne was not a weakness: freed from debts to the factions, and strengthened by his long experience with the Treasury, the new pope could immediately tackle the pressing issue — the poisoned legacy of Coscia.

The Poisoned Legacy of Benedict XIII

Cardinal Niccolò Coscia, a creature of Benedict XIII, had ruled as master over the temporal affairs of the previous pontificate. Traffic in benefices, sales of offices, embezzlement: his administration had drained the coffers of the Papal States and presented all of Europe with the spectacle of a court delivered over to a favorite.^[46][47] The new pope’s first task was clear: to do justice.

The Condemnation of Coscia

Clement XII spared no mercy for the guilty party despite his cardinalate dignity. Coscia was tried, sentenced to a heavy fine, excommunicated, and sentenced to ten years imprisonment.^[48] The pope demanded from Benedict XIII’s former ministers the restitution of sums unduly received. This was a rare gesture: a pope imprisoning a cardinal for corruption sent an unequivocal signal to the Curia that the era of impunity for favorites was over.

The Restoration of Finances and the Lottery

The deficit still had to be covered. Clement XII made a pragmatic and controversial decision: he reinstated the public lottery that Benedict XIII, out of moral scruple, had banned.^[49] The measure brought in a considerable annual sum — close to half a million écus^[50] — which replenished the Treasury and financed the great works of the reign. A measure of temporal government, not of doctrine: it was about covering the deficit and financing the building sites, which the lottery indeed made possible, even if it meant breaking with the rigor of his predecessor.

What Was the Emerging Freemasonry?

To understand the stakes, one must recall what Freemasonry was at the time. Speculative masonry — distinct from the old guilds of builders — was born in London in 1717 with the founding of the first Grand Lodge. Within about twenty years, it spread to France, Italy, and the Empire: discreet societies recruiting men of all religions and conditions, bound by an oath of secrecy sworn on the Bible.^[51] It was this novelty — an initiatory, transconfessional fraternity escaping the control of both Church and State — that Rome condemned.

The Context: Florence, Fleury, and the Jacobites

According to the most common reconstruction, the condemnation had a political as well as doctrinal trigger. In Florence, the pope’s birthplace, a lodge had formed, mixing English Protestants, freethinkers, and exiles. In France, Jacobite supporters — loyal to the exiled Catholic Stuarts — had formed a secret lodge and sought to influence Cardinal André-Hercule de Fleury, Louis XV’s prime minister.^[52] Their maneuvers failed; Fleury, who had Masonic assemblies banned, then pressed the pope to prohibit Catholic membership. The Stuart claimant himself, “James III,” residing in Rome, supported the move after Hanoverian lodges had supplanted the Jacobites at the head of French Freemasonry in 1737.^[53][54]

The Content of the Bull

On April 28, 1738, Clement XII promulgated the bull In eminenti apostolatus specula — “From the high watchtower of the apostolate…”. The text condemned the societies of Liberi Muratori or Freemasons and advanced several specific reasons:^[55][56]

1. these societies admit men of all religions and sects, threatening the purity of the faith;
2. their members are bound by an oath of secrecy sworn on the Bible, and by hidden rules;
3. this very secrecy makes the associations suspicious: if they did no evil, they would not so hate the light;
4. several civil states had already forbidden these meetings as dangerous to public order;
5. consequently, the pope condemns and forbids them, and membership incurs excommunication incurred by the very deed itself, whose absolution is reserved to the sovereign pontiff, except at the hour of death.

“If they did no evil, they would not so hate the light.” — central argument of the bull In eminenti apostolatus specula (April 28, 1738)^[57]

The bull was written from a religious rather than political perspective: it made no distinction between Jacobite and Hanoverian masonry, but struck at the very principle of secret societies bound by oath and secrecy.^[58] In Florence, enforcement was severe: the Inquisition pursued lodge members, and the poet Tommaso Crudeli was arrested on 9 May 1739 — more than a year after the bull —, imprisoned, then released in April 1741.^[59]

A Condemnation Repeated Many Times

Clement XII’s act did not remain a dead letter. The doctrine was confirmed and clarified by his successors: Benedict XIV with the bull Providas Romanorum (1751), Pius VII with Ecclesiam a Jesu Christo (1821), Leo XII with Quo graviora, Pius VIII with Traditi humilitati (1829), Gregory XVI with Mirari vos (1832), Pius IX on several occasions between 1846 and 1873, then, in the century of triumphant Freemasonry, Leo XIII with the encyclical Humanum genus (1884).^[60][61] For a comprehensive examination of initiatory doctrines and the Church’s position, see the article Esotericism; here, the inaugural character of the 1738 bull is what matters: Clement XII was the first pope to name and condemn Freemasonry as such.

Upholding Unigenitus Against Jansenism

On the front of Jansenism, Clement XII yields nothing. He vigorously upholds the bull Unigenitus Dei Filius of Clement XI (1713), which condemned the propositions of Pasquier Quesnel, and stands firm against the appelants — those French bishops and clerics who, refusing the bull, appealed to a future council.^[62][63][64] The reforming pope is therefore not a pope of doctrinal laxity: he unwaveringly continues the line of his predecessors against Jansenist rigorism.

Renewing the Condemnation of the Chinese Rites

Similarly, on the great controversy of the Chinese rites, Clement XII renews the condemnation already issued by Clement XI (Ex illa die, 1715). The bishop of Beijing, François de la Purification, had ordered in 1733, by two pastoral letters, that the bull be observed according to the accommodations granted to missionaries; on 25 September 1735, Clement XII annulled these two pastoral letters and ordered that the bull be observed without any exception.^[65] This position, which Benedict XIV would finalize with Ex quo singulari (1742), is part of the long controversy opened in the 17th century; for a full analysis, see the dedicated article on the Chinese rites controversy.

Openness to the Eastern Churches

This doctrinal firmness is notably accompanied by a policy of openness toward the Christians of the East. Clement XII founded the Corsini College at Ullano in Calabria, intended for Greek students; he invited Greek-Melkite monks from Mount Lebanon to Rome and assigned them the ancient church of Santa Maria in Domnica; finally, he sent the Orientalist Joseph Simon Assemani on a mission to the Levant, both to seek manuscripts and to preside, as legate, over the national council of the Maronites at Louwaizé (30 September 1736).^[66][67][68]

This dual movement — firmness against internal deviations, outstretched hand to the united Eastern Churches — illuminates the coherence of a pontificate concerned with Catholic unity in all its forms.

The Trevi Fountain

Clement XII’s patronage left Rome its most famous monument. In 1732, the pope opened a competition and then launched the construction of the Trevi Fountain (Fontana di Trevi), entrusted to the architect Nicola Salvi.^[69][70] Backed by the Palazzo Poli and fed by the ancient Aqua Virgo, the fountain unfolds a scenography of marine deities and rocks that makes it the culmination of Roman Baroque. It would not be completed until 1762, under Clement XIII, but it was indeed Clement XII who decided and initiated the work.^[71]

The Façade of Saint John Lateran and the Corsini Chapel

Clement XII endowed the cathedral of Rome, Saint John Lateran, with its grand eastern façade. The competition, won by the Florentine Alessandro Galilei, resulted in 1735 in the monumental façade with colossal pilaster order that still gives the basilica its face today.^[72][73][74] In the same basilica, the pope had the sumptuous Corsini Chapel built, dedicated to his saintly ancestor Andrew Corsini, where he chose to be buried.

The Capitoline Museums and Artistic Patronage

In 1733, Clement XII purchased for sixty thousand écus the collection of antiquities of Cardinal Alessandro Albani and installed it on the Capitoline Hill, opened to the public in 1734: thus were born the Capitoline Museums (Musei Capitolini), considered one of the oldest public museums in the world.^[75][76] The pope also expanded the Vatican Library and enriched its collections. Far from a mere princely whim, this patronage opened to the public a heritage previously reserved: it contributed to the emerging idea of a common cultural heritage.

Useful Works: The Port of Ancona and Drainage Projects

The builder did not neglect the useful. Clement XII developed the port of Ancona, which he established as a free port and equipped with an access road, to stimulate Adriatic trade.^[77] He also undertook to drain the malarial marshes around Lake Trasimene, a public health work benefiting the populations of the Papal States. Artistic patronage was thus accompanied by a concern for good economic and sanitary governance.

On June 16, 1737, in the Archbasilica of Saint John Lateran, whose façade he had just commissioned, Clement XII celebrated a grand canonization ceremony: he inscribed into the catalogue of saints Vincent de Paul, apostle of charity and founder of the Lazarists and the Daughters of Charity; Catherine of Genoa (Caterina Fieschi Adorno), great mystic of purgatory; and Juliana Falconieri, founder of the Servite Sisters of Mary.^[78] A few weeks earlier, on 5 April 1737, he had already canonized the Jesuit John Francis Regis, missionary of Vivarais.^[79]

Among these four figures, Catherine of Genoa holds a special place in the history of spirituality. Her Treatise on Purgatory makes her a major witness to the Catholic doctrine on the purification of souls:

“It is true, as I see it, that the love which proceeds from God and flows back into the soul causes in it an inexpressible contentment; but this contentment does not remove a single spark of their suffering from the souls in purgatory. […] Thus the souls in purgatory have at once an extreme joy and an extreme suffering, without the one standing in the way of the other.”^[80] — Saint Catherine of Genoa, Treatise on Purgatory, § 14, canonized by Clement XII in 1737^[81]

By canonizing together a great charitable figure, a missionary, a mystic, and a founder, Clement XII recalled, at the heart of a century influenced by the Enlightenment and secret societies, the living diversity of Catholic holiness. The cult of Saint Vincent de Paul, in particular, would from then on enjoy universal diffusion.^[82]

The pontificate of Clement XII coincided with the War of the Polish Succession (1733–1738), a European conflict pitting France, Spain, and Savoy against Austria and Russia. The Papal States suffered severely from the repercussions: foreign armies crossed the Church’s territory, levied contributions, and paid little heed to the neutrality that the elderly pope strove to maintain.^[83][84][85]

Weakened, blind, and lacking significant military strength, Clement XII could only protest against these violations of pontifical sovereignty and attempt, through diplomacy, to protect his subjects. This episode illustrates the political weakening of the papacy in the 18th century, caught between monarchies that scarcely consulted it on world affairs—a striking contrast to the role of arbiter that his predecessors of the previous century could still play.

A Blind Pope Governing from His Bed

The most striking feature of his reign was the pope’s illness. Already suffering from poor eyesight at his election, Clement XII became completely blind by 1732; plagued by gout, he was soon confined to his bed, from where he held audiences and governed the Church.^[86][87] The image of an octogenarian, blind pontiff directing from his chamber the condemnation of Freemasonry, the trial of a cardinal, and the construction of Rome’s most beautiful fountain is striking: the will intact despite a ruined body.

Death at Eighty-Seven

Clement XII died in Rome on February 6, 1740, at the age of eighty-seven, carried off by complications from gout after nearly ten years of pontificate.^[88][89] Initially laid to rest at Saint Peter’s, his body was transferred on July 20, 1742, to the Corsini Chapel of the Lateran, which he had commissioned—uniting in death the pope, his family, and his saintly ancestor.

The 1740 Conclave and Benedict XIV

The very long conclave that followed—lasting six months—ultimately elected the learned Cardinal Prospero Lambertini, who took the name Benedict XIV (elected August 17, 1740). One of the most cultured popes in history, he would continue several lines of his predecessor: confirming the condemnation of Freemasonry (Providas, 1751) and closing the controversy over the Chinese rites (Ex quo singulari, 1742).

Assessment of the Pontificate

Clement XII’s reign presents a dual aspect. On one hand, a weakened pope: elected too old, soon blind and bedridden, powerless before armies trampling his States. On the other, an active pope: he restored court morality after the Coscia scandal, reformed finances, beautified Rome like no one since the 17th century, stood firm against Jansenism and the Chinese rites, opened the way to the Eastern Churches, and above all opened the great dossier of Freemasonry with a bull whose doctrine would be confirmed from Benedict XIV to Leo XIII, for nearly a century and a half.^{[90][91][92][93][94]}

What remains is the paradoxical image of an old pope, blind and builder, who governed the Church from his bed and whose most consequential decision in doctrinal matters was Rome’s first word against the lodges. With him, the 18th-century papacy asserted both its doctrinal firmness and its political decline.

• Pope Benedict XIII — his predecessor, whose reign was marred by the favourite Coscia.
• Pope Benedict XIV — his successor, who confirmed the condemnation of Freemasonry and ended the controversy over the Chinese rites.
• Pope Clement XI — who made him a cardinal and whose name and doctrinal firmness he adopted.
• Esotericism — for a comprehensive examination of Freemasonry condemned by In eminenti in 1738.
• The controversy over the Chinese rites — the great missionary dispute, renewed in condemnation by Clement XII.
• The Archbasilica of Saint John Lateran — the cathedral of Rome, endowed by Clement XII with its façade and the Corsini chapel.
• The Papal States — the temporal domain crossed by armies during the War of the Polish Succession.
• The Catholic Counter-Reformation — the great reform framework within which the pontificate still fits.