Poseidon

Poseidon is god of the sea, earthquake, and horses. He is son of Cronus and Rhea. He is brother of Zeus and Hades. He is generally calm, when provoked he can be very merciless. Along with Apollo, he built the wall of Troy for King Laomedon. When Laomedon refused to pay them for their labors, Poseidon sent a sea monster to threaten the city. Laomedon consulted to the hero Heracles and promised his famous horses if he would kill the sea monster for him. However, breaking his promise to Laomedon, Heracles led an expedition against Troy. Still distressed from the being deceived at the hands of an earlier Trojan King, Poseidon favored the Achaean side of the war.