Father: Earl Walter Devereux XVIII of Essex Born: September 16, 1539 in Carmarthen Castle, Wales Married: Unknown Died: September 22, 1576 in Dublin Castle, Ireland
Mother: Lady Lettice Knollys Born: 1539 Died: December 25, 1634
Children: 1. Lady Penelope Devereux of Essex (b.1564) 2. Earl Robert Devereux XIX of Essex (b.11/19/1566)