Cardinal de Châtillon participated in the
papal conclave of 29 November 1549 – 7 February 1550. He arrived late, however, on 12 December, along with Cardinals de Guise, du Bellay, Vendome, and Tournon. A letter that he wrote to the Constable de Montmorency on 31 January 1550, during the Conclave, provides an intimate view of the politics of the conclave, and provides an account of the sudden death of one of the leading candidates, Cardinal Niccolò Ridolfi, a nephew of
Pope Leo X. Ridolfi had been greatly favored by King
Henri II of France. He opted for the deaconry of
S. Adriano on 25 February 1549. Cardinal de Châtillon obtained from
Pope Julius III the necessary bulls for his confirmation as Abbot of Fontainejean, in the diocese of Sens, shortly after the new Pope's election. The monastery was burned and the monks slaughtered in 1562. The Cardinal de Châtillon, who had
apostasized in favor of Calvinism, was deprived of all of his benefices by
Pope Pius IV on 31 March 1563. The Cardinal did not stay long in Italy after the papal Coronation. He was back in France by 4 March, when he was at Orléans; on 11 March 1550, he wrote a letter from Châtillon; and on 29 May he was following the Court again and was in Boulogne, which King Henri had entered in triumph on 15 May after the city's capture from the English. On 20 October 1550 Cardinal Odet de Châtillon was appointed Abbot Commendatory of Saint Jean de Sens. He also became the seventy-seventh Abbot, the fifth Abbot Commendatory, of the royal
Abbey of Fleury, also known as the Abbey of St. Benoît-sur-Loire. He held this benefice until he was deposed in 1563, though the abbey was sacked by the Huguenot army of the Prince de Condé in 1562.
Protector of Ronsard and Rabelais As a member of the King's Council, Châtillon was placed in charge of the library of France's Royal Privy Council and, using this and his other offices, he protected his friends
Ronsard and
Rabelais. In this he was working with Cardinal
Jean du Bellay, who had been Rabelais' original protector. In 1552, after the Cardinal had obtained for the latter a ten-year monopoly on book-printing, Rabelais dedicated his
Quart Livre of
Pantagruel to Odet in gratitude. The Dedicatory Epistle is dated 28 January 1552. In 1553 he succeeded Cardinal
Claude de Longuy de Givry as Abbot Commendatory of
Saint Bénigne de Dijon, and held the benefice until he was deposed in 1563. In 1554 the Cardinal de Châtillon ordered published the
Synodial Constitutions of the Diocese of Beauvais, containing some twenty-one chapters on the duties and conduct of the clergy, including the requirement that they keep their beards shaved (
la barbe rase) and their hair cut short. The Cardinal, according to his portraits, wore a full beard, which was becoming the fashion, and had very well trimmed hair. The statutes, in fact, were a reworking of those promulgated twenty-five years earlier. In 1556 he became Abbot Commendatory of the Abbey of
Ferrières on the appointment of King
Henry II, with the confirmation of
Pope Pius IV. Four years later, Pius named him
grand inquisitor of France, though the French Parliament's opposition to the Inquisition prevented him from taking up the post. Sometime after 1560 Cardinal Odet also became abbot of Grandchamps, of the Cistercian abbey of Nôtre Dame de Quincy in the diocese of Langres, and (from 1555, at least) of Vézelay. Finally, then, he was from 1554 to 1559
Prior (and from 14 August 1559 the
Provost) of
St-Pierre de Mâcon.
Colloquy of Poissy Cardinal de Châtillon participated in the famous
Colloquy of Poissy in the summer of 1561. When the reformer
Theodore de Beze arrived in Poissy on 23 August he was met with great ceremony and obvious pleasure by the King of Navarre, the Prince de Condé and the Cardinal de Châtillon, almost with more honor (wrote Claude Haton) than the Pope of Rome would have received had he come. ==Protestant career==