Abraham
Abraham is the father of Isaac with his wife Sarah. He also has Ishmael with Hagar, Sarah's handmaid, and he has other children with Keturah, whom he marries after Sarah's death. He is the grandfather of Jacob and Esau. Abraham is believed to be the founding patriarch of the Israelites, Ishmaelites and Edomites. Abraham was the son of Terah and the grandson of Nahor (son of Serug). Abraham's older brothers were named Nahor (son of Terah) and Haran.