John+ Grey & Avise+ Marmion 
John+ and Avise+ were married in a religious ceremony before December 27th, 1337. They had two sons named Robert+ and John.
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Personal Details
John+ Grey
John+ was born on October 9th, 1300 in Rotherfield Greys Castle, Henley-on-Thames, Oxfordshire, England. He died at the age of 58 on September 1st, 1359.
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Children
John Grey
John was born about 1342 in Rutherfield, Leicestershire, England. He died on June 4th, 1379.