Father: Baron Guillaume I of Saint Omer Born: 1061 in Saint Omer Married: Unknown Died: 1143 in Saint Omer
Mother: Princess Mellisende of Picquigny Born: 1064 Died: 1129
Children: 1. Princess Mellisende of Saint Omer (b.1097) 2. Baron Guillaume II of Saint Omer (b.1099) 3. Princess Mahaut of Saint Omer (b.1102)
