sentences:  The brothers also maintained collections of live birds and animals in their palazzo on via dei Chiavari in Rome.Aside from drawings of artists of the Quattrocento and the High Renaissance, he commissioned from his “giovani ben intendenti del disegno” hundreds of drawings after the Antique and examples of curiosities of every kind.Cassiano had casts made of works of sculpture, such as the reliefs of Trajan's Column, which Poussin seems to have drawn at leisure, rather than working from the original (Friedlaender 1964).