Nielsen Hayden genealogy
Descendants of Ethen
Ethen
Ferteth ( - Bef Dec 1170)(m. Bef 1150)
   └─ Gilbert of Strathearn (Bef 1151 - 1223)
    Maud d'Aubigny ( - Aft 1209)
       └─ Robert of Strathearn ( - Between 25 Sep 1237 and 1244)
       
           │ + Patrick de Graham ( - 27 Apr 1296 Dunbar, East Lothian, Scotland)(m. Bef 1260)
           └─ Malise of Strathearn ( - Bef 23 Nov 1271 bur.Dunblane, Stirlingshire, Scotland) =>
            + Matilda
            + Mary of Argyll, Queen of Man ( - Between 28 Sep 1300 and 10 Oct 1303 bur.Church of the Grey Friars,
            London, England)(m. Abt 1268)
            London, England)(m. Abt 1268)