John FitzGerald & Margery FitzAnthony 
They had a son named Osborn.
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Personal Details
John FitzGerald
John was born in 1195 in Dungarvan Castle, Waterford, Ireland.1 He died at the age of 66 on July 23rd, 1261 in Callan, Kerry, Ireland.1
Margery FitzAnthony
Margery was born in 1210 in Decies, Waterford, Ireland.1 Margery is no longer alive.
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Children
Osborn FitzGerald
Osborn was born in 1240 in Dungarvan Castle, Waterford, Ireland.1 He died at the age of 53 in 1293 in Llanaber, Merionethshire, Wales.1