Ranuccio's son, Pier Luigi, married a member of the ancient baronial family of the Caetani (that of Pope Boniface VIII), thus giving the Farnese further importance in Rome. His daughter, Giulia, who was a mistress of Pope Alexander VI, further expanded the Roman fortunes of her family by persuading the Pope to bestow on her brother Alessandro the title of cardinal. Under Alexander's successor, Pope Julius II, he became governor of the Marca Anconetana and, in 1534, he was elected as pope and took the name of Paul III. Notable features of his reign included the establishment of the Council of Trent and an unprecedented level of nepotism. For example, two months after becoming pope in 1534, he made his 14-year-old grandson Alessandro a cardinal deacon.