Nielsen Hayden genealogy
Family: Robert de Quincy / Hawise of Chester (F1598)
m. Between 1197 and 1200-
Male
Robert de Quincy
Birth Death Aft 20 May 1217 London, England 
Burial Church of the Hospitallers, Clerkenwell, London, England Marriage Between 1197 and 1200 [1] Father Saher de Quincy | F6071 Group Sheet Mother Margaret of Leicester | F6071 Group Sheet
Female
Hawise of Chester
Birth 1180 Death Bef 19 Feb 1243 Burial Father Hugh of Chester | F5063 Group Sheet Mother Bertrade de Montfort | F5063 Group Sheet
Female
+ Margaret de Quincy
Birth Bef 1217 Death Bef 30 Mar 1266 Hampstead, Middlesex, England Burial Church of the Hospitallers, Clerkenwell, London, England Spouse John de Lacy | F6218 Marriage Bef 21 Jun 1221 Spouse Walter Marshal | F5160 Marriage Jan 1242
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Sources - [S4455] Douglas Richardson, 3 Oct 2020, post to soc.genealogy.medieval.
- [S4455] Douglas Richardson, 3 Oct 2020, post to soc.genealogy.medieval.