John de Montagu & Margaret de Monthermer 
John and Margaret were married in a religious ceremony on July 2nd, 1340 in Saint Humbert,Stokenham,Devon,England. They had a son named John.
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Personal Details
John de Montagu
John was born in 1327 in Donyatt, Somerset, England. He died at the age of 63 on February 25th, 1390 in Cathedral,Salisbury,Wiltshire,England.
Margaret de Monthermer
Margaret was born on October 14th, 1329 in Saint Humbert,Stokenham,Devon,England. She died at the age of 65 on March 24th, 1395 in Cassington, Oxfordshire, England.
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Children
John Montagu, 3rd Earl of Salisbury
John was born in 1350 in Salisbury, Wiltshire, England. He died due to He was beheaded. at the age of 50 on January 5th, 1400 in Cirencester, Gloucestershire, England.