Simon de Montague , 1st Baron Montagu
Simon was born about 1269 in Somersetshire, England.  He died on September 26th, 1316 in England.

 Hawise de St. Amand
Hawise de was born in 1269 in Montacute, Somerset, England.

 William de Montacute , Baron Montagu 2nd
William was born in 1286 in Salisbury, Wiltshire, England.  He died at the age of 33 on October 18th, 1319.