Sebastiano Conca (c. 1680 - 1764) was an Italian painter.
He was born at Gaeta, then part of the Kingdom of Naples, and apprenticed in Naples under Francesco Solimena. In 1706, along with his brother Giovanni, who acted as his assistant, he settled at Rome, where for several years he worked in chalk only, to improve his drawing. He was patronized by the Cardinal Ottoboni, who introduced him to Clement XI, who commissioned a well-received Jeremiah painted for the church of St. John Lateran. Conca was knighted by the pope.
He collaborated with Carlo Maratta in the Coronation of Santa Cecilia in the namesake's church of Santa Cecilia in Trastevere (1721-24). He was elected in 1718 to the Accademia di San Luca and its director in 1729-1731 and 1739-1741. His painting was strongly influenced by the Baroque painter Luca Giordano.
In 1739, he published a guide to painting: Ammonimenti (or Admonishments), which blended moralistic advice with technique. He returned to Naples in 1752, and enjoyed the royal patronage of Charles III. His studio was prodigious and he painted frescoes for the Church of Santa Chiara (1752-1754), five canvases for the Chapel in Caserta Palace (now lost), as well as many others including for the Benedictines of Aversa (1761), a History of Saint Francis of Paola for the Sanctuary of Saint Maria di Pozzano of Castellammare di Stabia (1762-1763), and many other altarpieces. He painted till late in life. - wikipedia