Silpa (Hebrew זִלְפָּה ) is a figure from the Old Testament - the Tanakh, which only occurs in the Book of Genesis.
She was the handmaid of Leah, which was the first wife of Jacob and his two sons: Gad and Asher gave birth. Leah's father Laban gifted his daughter with the maid after she had consummated the marriage with Jacob.
Zilpah was one of the younger half- sisters of Leah. Your mother herself was one of the maids of Laban.