Eustace III. Boulogne-Sur-Mer, De & Mary Kenneth

Eustace III. and Mary were married in a religious ceremony in 1102. They had a daughter named Matilda.

Children
- Matilda Boulogne-Sur-Mer, De
  Matilda was born in 1104 in Boulogne. She died at the age of 48 on May 3rd, 1152 in Hedingham Castle, Essex, England. She was buried in Faversham Abbey.