Petronilla de Boulogne 
Petronilla de was born in 0970 in Boulogne-sur-Mer, Pas-de-Calais, France. Petronilla de's father was Arnulf II Comte de Boulogne and her mother was Daughter of the Castellan of Lens. She had a brother and a sister, named Baudouin II Comte de and Mathilda (Maude) de. She was the oldest of the three children.General Notes
Somewhat speculative link. Was daughter of "Earl of Boulogne".
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