Sir John Fitz Marmaduke, Knt.

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ChartsAncestors of Harriet Hanson Robinson
Sir John Fitz Marmaduke, Knt., whose ancestry is unknown (or not traced here), died before 16 August 1311,1 and was buried at Durham Cathedral, Durham, England.1

John married (1) Isabel de Brus, daughter of Robert de Brus and Isabel de Clare;2 he married (2), as her 3rd husband, Ida de Roos, daughter of Sir Robert de Roos, Knt., before 8 May 1285.2

Family 1

Isabel de Brus d. bef. 1285

Family 2

Ida de Roos d. aft. 17 Aug 1320
This person was last edited on17 Apr 2021


  1. [S1947] Douglas Richardson, Royal Ancestry: A Study in Colonial and Medieval Families, Five vols. (Salt Lake City, Utah: s.p., 2013), 1:593 (Brus 6.iv), 3:669 (Lumley 11), further cited as Richardson, Royal Ancestry.
  2. [S1947] Richardson, Royal Ancestry, 1:593 (Brus 6.iv).