Cersei's mother died in childbirth and her father, Tywin, was constantly away from home during her childhood and teenaged years, serving as Hand of the King at the capital, with only infrequent visits back to his seat at Casterly Rock. This meant that Cersei and her two brothers were primarily raised by servants attached to House Lannister. During these years, she began an incestuous relationship with Jaime which has continued despite her marriage.