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Sebastiano Ricci (1 August 1659 – 15 May 1734) was an Italian Baroque painter of the late Baroque period in Venetian painting. About the same age as Piazzetta, and an elder contemporary of Tiepolo, he represents a late version of the vigorous and luminous Cortonesque style of grand manner fresco painting.
He was the uncle of Marco Ricci (1676 – 1730), who trained with him, and became an innovator in landscape painting.
General info from Wikipedia.org