(b Venice, c.1670; d Vienna, 1736).
It. composer, pupil of Legrenzi. Choirboy at St Mark's, Venice. Choirmaster at Mantua court, 1699–1708. Choirmaster in Prince Ruspoli's establishment in Rome, 1709–16. Succeeded Fux as vice‐Kapellmeister, Vienna imperial court, 1716, remaining in the post until his death and becoming a favourite of Emperor Charles VI who eventually paid him a salary higher than Fux's. Comp. 87 operas, over 40 oratorios, masses, and other church mus., incl. Christmas Cantata, and songs, of which Come raggio di sol is well known. Among his many operas was the first setting of Metastasio's libretto La Clemenza di Tito (Vienna, 1734).