Nielsen Hayden genealogy
Family: Richard of Cornwall, King of the Romans / Joan (F1235)
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Father | Male
Richard of Cornwall, King of the Romans
Born 5 Jan 1209 Winchester Castle, Hampshire, England 
Died 2 Apr 1272 Berkhamsted, Hertfordshire, England 
Buried Hailes Abbey, Gloucestershire, England 
Married Other Spouse (Unknown mistress of Richard of Cornwall) | F16965 Married Other Spouse Isabel Marshal | F917 Married 30 Mar 1231 Fawley, Buckinghamshire, England 
Other Spouse Sancie | F878 Married 23 Nov 1243 Westminster Abbey, Westminster, Middlesex, England 
Father John, King of England | F1256 Group Sheet Mother Isabel of Angoulême, Queen Consort of England | F1256 Group Sheet
Mother | Female
Joan
Born Died Bef 1 Jul 1285 Buried Other Spouse Ralph de Valletort | F10962 Married Other Spouse Alexander de Okeston | F10963 Married Bef 1264 Other Spouse Andrew de Trellock | F10964 Married Bef 1278 Father Mother
Child 1 | Male
+ Richard de Cornwall
Born of Asthall, Oxfordshire, England 
Died 1296 Berwick, Northumberland, England 
Buried Spouse Joan | F9901 Married Bef 1280