During this period (1516–1530), which may be called the period of his mastery and maturity, the Artist moved on from his early Giorgionesque style, undertook larger, more complex subjects, and for the first time attempted a monumental style. Giorgione died in 1510 and Giovanni Bellini in 1516, leaving Titian unrivaled in the Venetian School. For sixty years he was the undisputed master of Venetian painting. In 1516, he completed his famous masterpiece, the Assumption of the Virgin, for the high altar of the Basilica di Santa Maria Gloriosa dei Frari, where it is still in situ. This extraordinary piece of colourism, executed on a grand scale rarely before seen in Italy, created a sensation. The Signoria took note and observed that Titian was neglecting his work in the hall of the great council, but in 1516 he succeeded his master Giovanni Bellini in receiving a pension from the Senate.