Giovanni Benedetto Castiglione (baptized 23 March 1609[1] – 5 May 1664) was an Italian Baroque painter, printmaker and draftsman, of the Genoese school. He is best known now for his etchings, and as the inventor of the printmaking technique of monotyping. He was known as Il Grechetto in Italy and in France as Le Benédette.
