CESTI, MARC' ANTONIO (1618-1669), Italian musical composer, was born at Florence (or according to some authorities at Arezzo) in 1618. He was a pupil of Carissimi, and is known principally as a composer of operas, notable for the pure and delicate style of their airs, the most celebrated of which were La Dori (Venice, and Il Pomo d' oro (Vienna,