Polidoro Caldara, called Polidoro da Caravaggio (born in Caravaggio ca. 1499; murdered in Messina in 1543?), arrived in Rome in 1516/17, according to Vasari in contact with members of the Raphael workshop (Loggia); 1522-23 and 1524 in Naples; after the sack of Rome in 1527 in Naples, in October 1528 in Messina, in October 1535 designs for the entry there of Emperor Charles V; famous for his no longer surviving grisaille paintings on Roman palace facades.