Conca, Sebastiano an Italian painter, was born at Gaeta in 1676, and studied in the school of Solimena. His abilities soon became known, and procured him the patronage of cardinal Ottoboni, who rewarded him liberally for a picture of Herod and the Wise Men. He was employed to decorate the Church of St. Clement. His principal works at Rome are Jeremiah, in St. John Lateran, and The Assumption, in San Martino; at Loretto. San Niccolo; at Ancona, San Saverio; and at Foligno. San Agostino. He died in 1764. See Hoefer, Nouv. Biog. Generale, s.v.; Spooner, Biog. Hist. of the Fine Arts, s.v.