Robert De Umfreville
Robert was born in 1277 in Castle Prudhoe, Northumberland, England.  He died at the age of 48 on April 2nd, 1325 in Castle Prudhoe, Northumberland, England.

 Alianor De Clare
Alianor was born in October 1292 in Prudhoe, Northumberland, England.  She died at the age of 75 on March 31st, 1368 in Eshott, Northumberland, England.

 Robert De Umfreville
Robert was born about 1322.

 Thomas De Umfreville
Thomas was born about 1324 in Castle Prudhoe, Northumberland, England.  He died on May 21st, 1387 in Castle Harbottle, Northumberland, England.