Louis "D'Acre" Brienne Viscount Beaumont
Louis "D'Acre" was born in 1227 in Acre, Palestine.  He died after September 1st, 1297.

 Agnes De Beaumont
Agnes De was born about 1270 in Beaumont, Maine, France.

 Henry Beaumont Earl of Buchan
Henry was born about 1288 in Buchan, Aberdeenshire, Scotland.  He died on March 10th, 1340.