William (3rd Earl of Salisbury Longespee

William (3rd Earl of Salisbury was born before 1240.  William (3rd Earl of Salisbury's father was William Longespee and his mother was Idoine De Camville.  His paternal grandmother is Ella Countess of Salisbury; his maternal grandfather is Richard De Camville. He had a brother and two sisters, named Richard, Ela Countess and Ida.  He is the second oldest of the four children.