Son of an animal painter, Philipp Peter Roos moved to Italy in 1677. There he studied with a Baroque painter and decorator, whose daughter he married after he converted to Catholicism. Around 1684 Roos bought a ramshackle house near Tivoli that was nicknamed "Noah's Ark" because he raised the animals that he painted. Roos specialized in painting domestic animals with herdsmen in the Roman countrys