741897 Laocoon, c.1610-14 (oil on canvas) by Greco, El (Domenico Theotocopuli) (1541-1614); 137.5 x 172.5 cm; National Gallery of Art, Washington DC, USA; (add.info.: priest of the god Apollo he broke his oath of celibacy and while preparing to sacrifice a bull to the god Poseidon, he was crushed to death with his twin sons by two sea serpents (Porces and Chariboea) sent by Apollo.); Greek, out of copyright.