Jean de Picquigny

Jean's father was Gerard III de Picquigny and his mother was Mathilde de Crecques.  His paternal grandparents were Enguerand I de Picquigny and Marguerite de Ponthieu; his maternal grandparents were Anseau II de Crecques and Beatrix de Guines.  He was an only child.  He died on September 29th, 1304.