Robert De Umfreville
Robert De was born about 1277 in Castle Prudhoe, Northumberland, England.  He died on March 30th, 1325 in Castle Prudhoe, Northumberland, England.

 Alianore De Angus
Alianore De was born about 1290 in Prudhoe, Northumberland, England.  She died on March 31st, 1368 in Eshott, Northumberland, England.

 Robert De Umfreville
Robert De was born about 1322 in Castle Prudhoe, Northumberland, England.  He died before October 10th, 1379 in Farnacres, Durham, England.

 Thomas De Umfreville
Thomas De was born before January 1326 in Castle Prudhoe, Northumberland, England.  He died on May 21st, 1387 in Castle Harbottle, Northumberland, England.