Abraham, the Old Testament Patriarch; eventually she bore him a son, Isaac, though she had previously been barren. Sarah died at 127 years of age. She is included in the commemoration of the ancestors of the Lord on the Sunday of the Forefathers in December.
The Genesis account
The story of Sarah and Abraham can be found in Genesis 12-23.
Sarah was originally called Sarai (שָׂרַי / שָׂרָי "My princess") and lived with her husband, then called Abram.