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brother of Sir William the Marischal Keith

Brother of Sir William the Marischal's father is Sir Edward 16th Knight Marischal 1st Lord Keith Keith and his mother is D M M. His paternal grandparents are Edward Hereditary Earls Marischal of Scotland Keith and Domina Isabella Seaton. He had a brother and a sister, named William 2nd Lord Marischal de Keith and Janet.

Ancestor Pedigree Chart
- Sir William Keith Knt ^*
  - b.~  1236 in Humbie, East Lothian, Scotland d.<  1293
  
  Sir Robert Marischal  Scotland circa 1290 Keith
  - d.17 Oct 1346
  
  Barbara Seaton ^*
  - b.~  1216 in Seton, East Lothian, Scotland
  
  Sir Robert Hereditary Earls Marischal of Scotland Keith
  - d.~  1346
  
  Chief Douglas
  
  Barbara Douglas
  
  Edward Hereditary Earls Marischal of Scotland Keith
  
  Lord Gilbert de la Hay
  
  Margaret Hay
  
  Sir Edward 16th Knight Marischal 1st Lord Keith Keith
  
  Domina Isabella Seaton
  
  brother of Sir William the Marischal Keith
  
  D M M
  
  ^*There are earlier generations for the ancestor(s) indicated. See their page(s) for details (click name)

Details of brother of Sir William the Marischal's family with dau Cheyne of Ackergill Cheney