Ralph de Monthermer
Ralph was born before 1290.  He died on April 5th, 1325.

 Joan of Acre Plantagenet
Joan of Acre was born in 1272 in Acre, Palestine.  She died at the age of 35 on April 23rd, 1307 in Clare, Suffolk, England.  She was buried on April 26th, 1307 in Priory Church of the Austin Friars, Clare, Suffolk, England.

 Mary de Monthermer
Mary was born in 1298.

 Edward de Monthermer
Edward was born in 1304.

 Joan de Monthermer
Joan was born before 1307.

 Thomas de Monthermer
He died after 1329 in Akko, Hazafon, Israel.