Sarah

Sarah (formerly known as Sarai) was Abraham (formerly known as Abram)'s first wife. She bore him Isaac when she was very old. Her grandson Jacob is the ancestor of Israel, and is the one Israel is named after. She had an Egyptian maidservant named Hagar. Before Isaac was born, Sarah gave Hagar to Abraham to have children through her. She ended up having Ishmael, the ancestor of the Ishmaelites.