painters canvases deciphered Recovering and sharing knowledge of historic canvases. Piero di Cosimo Piero di Cosimo Correggio an unlined painting Titian Titian Titian Titian Titian El Greco El Greco Scipione Pulzone El Greco Alonso Sánchez Coello El Greco Caravaggio Caravaggio El Greco El Greco private collection Caravaggio El Greco Velázquez Velázquez Velázquez Velázquez Artemisia Gentileschi Rembrandt Alonso Cano Francisco de Goya If you consider to supporting the research at Lab O please donate here Lab O has been self funded and with support of family donors since 2014.