John Howard & Joan de Cornwall 
They had a son named John.
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Personal Details
John Howard
John was born in 1280 in East Winch, Norfolk, England.1 He died at the age of 53 in 1333 in Wiggenhall, Norfolk, England.1
Joan de Cornwall
Joan was born in 1285 in Thunnock, Lancashire, England.1 She died at the age of 63 in 1348.2
1 http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=GET&db=stolp&id=I903
2 http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=PED&db=:3108866&id=I6512&style=TABLE
2 http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=PED&db=:3108866&id=I6512&style=TABLE