John de Burgh, 2nd Earl of Ulster & Elizabeth de Clare 
John and Elizabeth were married on September 30th, 1308 in Waltham Abbey, Essex, England. They had a son named William.
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Personal Details
Elizabeth de Clare
Elizabeth was born on September 16th, 1295. She died at the age of 65 on November 4th, 1360.
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Children
William de Burgh, 3rd Earl of Ulster
William was born on September 17th, 1312. He died due to murdered at the age of 20 on June 6th, 1333.