William De + Meschines
William De + was born about 1090 in Grenon Castle, Normandy, France.  He died in 1130 in Egremont-Copeland, Cumberland, England.

 Cecily De+ Rumilly
Cecily De+ was born about 1092 in Normandy, France; alternate POB given..  She died before 1155.

 Avice De+ Meschines
Avice De+ was born about 1110 in Harringworth, Northumberland, England.  She died in Rougemont, West Ride Yorkshire, England.

 Alice De+ Meschines
Alice De+ was born about 1120 in Copeland, Cumberland, England.  She died in 1187.

 Maud De+ Meschines
Maud De+ was born in 1126 in Copeland, Cumberland, England.