Nielsen Hayden genealogy
Family: Robert Tyrwhit / Isabell Kelke (F1789)
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Father | Male
Robert Tyrwhit
Born of Kettleby, Lincolnshire, England 
Died 6 Jan 1427 Buried Chancel of Bigby church, Lincolnshire 
Married Father William Tyrwhit | F5077 Group Sheet Mother (Unknown) Grovel | F5077 Group Sheet
Mother | Female
Isabell Kelke
Born of Barnetby-le-Wold, Lincolnshire, England 
Died Buried Father William Kelke | F4568 Group Sheet Mother Isabel Monson | F4568 Group Sheet
Child 2 | Male
+ William Tyrwhit
Born Abt 1390 Died 1450 Buried White Friars, London, England 
Spouse Constance St. Quintin | F2792 Married Bef Nov 1410