The Egyptian god of fertility is Osiris, a god of the afterlife, the underworld, and rebirth. He was also the ruler of the dead and the judge of the underworld. He was the son of Geb, the earth god, and Nut, the sky goddess. Osiris was killed by his brother Seth, but was resurrected by his wife Isis. He was associated with the flooding of the Nile and was worshipped as the god of vegetation and fertility.