John De Lacy
John was born in 1192.  He died at the age of 48 on July 22nd, 1240.

 Margaret De Quincy
Margaret De was born in 1208.  She died at the age of 50 in 1258.

 Maud De Lacy
Maud was born in 1223 in Lincoln,Lincolnshire,England.  She died before March 10th, 1288.