Robert de Heydon - Pedigree | FamilyCentral
 Abt 1260 - Aft 1291
 Abt 1245 -
 Abt 1220 - 1272
 Abt 1185 - 1250
  Children
    1.
Peter Haydon
    2.
Rodger Haydon
    3.
Meraud Haydon
4.
Henry Haydon