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.

 Elizabeth de Montfort
Elizabeth was born in 1271 in Beaudesert, Warwickshire, England.  She died at the age of 74 in August 1345.

 William I de Montacute , Earl of Salisbury 1st
William I was born in 1302 in Cassington, Oxfordshire, England.

 Alice de Montacute

 John de Montacute
He died in 1317.