For some time, Livia and her son Tiberius, the new Emperor, appeared to get along with each other. Speaking against her became treason in AD 20, and in AD 24 he granted his mother a theater seat among the Vestal Virgins. Livia exercised unofficial but very real power in Rome. Eventually, Tiberius became resentful of his mother's political status, particularly against the idea that it was she who had given him the throne. At the beginning of his reign Tiberius vetoed the unprecedented title "Mater Patriae" ("Mother of the Fatherland") that the Senate wished to bestow upon her, in the same manner in which Augustus had been named "Pater Patriae" ("Father of the Fatherland") (Tiberius also consistently refused the title of "Pater Patriae" for himself).