Antonio Trivulzio, seniore

Antonio Trivulzio, seniore, was born in Milan on January 18, 1457, the son of Milanese patricians Pietro Trivulzio and Laura Bossi.[1] He was the brother of Teodoro Trivulzio, marshal of France, and the uncle of Cardinal Agostino Trivulzio.[1]

After obtaining a doctorate in law, he joined the Canons Regular at Sant'Antonio in Milan.[1] He was ordained as a priest around this time.[1] He went on to become the master of the Augustinian house of Sant'Antonio in Milan.[1]

He also served on the privy council of Gian Galeazzo Sforza, Duke of Milan.[1] In 1477, he served as the ambassador of the Duchy of Milan to Parma and in 1483, as its ambassador in Rome.[1] Settling in Rome, he became first a protonotary apostolic and then an Auditor of the Roman Rota.[1]

On August 27, 1487, he was elected Bishop of Como; he subsequently held this office until his death.[1][2]

In 1495, he served as Milan's ambassador to the Republic of Venice.[1] In 1499, following the downfall of Ludovico Sforza, he became one of the regents of Milan.[1] Sometime between 1499 and 1502, he became dean of the cathedral chapter of St. Donatian's Cathedral in Bruges.[1]

During the Italian Wars, he allied himself with Louis XII of France.[1] At Louis' request, Pope Alexander VI made him a cardinal priest in the consistory of September 28, 1500.[1] He received the red hat on October 2, 1500, and the titular church of the Basilica di Sant'Anastasia al Palatino on October 5, 1500.[1] He also became a member of the Senate of Milan in 1500.[1]

He participated in both the papal conclave of September 1503 that elected Pope Pius III and the papal conclave of October 1503 that elected Pope Julius II.[1]

He was Camerlengo of the Sacred College of Cardinals from 1505 to 1506.[1] On December 1, 1505, he opted for the titular church of Santo Stefano Rotondo.[1]

He died in Rome on March 18, 1508.[1] He is buried in Santa Maria del Popolo.[1]