Nielsen Hayden genealogy
Ancestors of Joan
┌── Henry fitz Ailwin, Mayor of London (Abt 1135 - 19 Sep 1212)(m. 1164)
┌── Peter fitz Henry ( - 1207)
│ └── Margaret ( - Aft 1212)(m. 1164)
│
│
│ ┌── Bartholomew de Chesney ( - Aft 1189)
└── Isabel de Chesney ( - Bef 1203 bur.Bermondsey Priory, Surrey, England)