1st Earl of Kildare John FitzThomas FitzGerald & Blanche de La Roche 
They had a daughter named Joan.
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Personal Details
1st Earl of Kildare John FitzThomas FitzGerald
John was born about 1251 in Banada Castle, Sligo, Ireland.1 He died on November 12th, 1316 in Laraghbryan, Maynooth, Kildare, Ireland.2
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Children
Joan of Kildare
Joan was born in 1281 in Fermoy, Cork, Ireland.2 She died at the age of 39 on May 2nd, 1320.2
1 http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=GET&db=michaelrneuman&id=I41905
2 http://wc.rootsweb.com/cgi-bin/igm.cgi?op=PED&db=arciek&id=I27542&style=TABLE
2 http://wc.rootsweb.com/cgi-bin/igm.cgi?op=PED&db=arciek&id=I27542&style=TABLE