Nielsen Hayden genealogy
Descendants of John de Morteyn
Abt 1230 - Aft 1265 (~ 36 years)Father: Eustace de Morteyn (Abt 1190 of Tilsworth, Bedfordshire, England - Bef 20 Feb 1233)
Mother: (Unknown daughter of Richard Silveyn) (of Donnesby, Lincolnshire, England - ??)
John de Morteyn (Abt 1230 of Tilsworth, Bedfordshire, England - Aft 1265)
Constance de Merston (of Marston, Oxfordshire, England - Between 1285 and 1293)
   └─ John de Morteyn (of Marston, Bedfordshire, England - 1296)
    Joan Gobion ( - Aft 1312)
       └─ John de Morteyn (of Merston, Bedfordshire, England - 1346)
        Joan de Rothwell
           │ + John Giffard (1301 of Twyford, Buckinghamshire, England - 25 Jan 1369)
            + John Chamberlain (Between 1290 and 1291 of Gatesden, Hertfordshire, England - ??)(m. Bef 1314)