Isabel de Roos

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Pedigree
ChartsAncestors of Harriet Hanson Robinson
Ancestors of Wilford Ervie Billings
Isabel de Roos, daughter of Sir William de Roos, Knt. and Eustache Fitz Ralph, died in 1309.1

Isabel married Sir Marmaduke de Thweng, Knt., 1st Lord Thweng, son of Sir Marmaduke de Thweng, Knt. and Lucy de Brus, in 1273.2

Family

Sir Marmaduke de Thweng, Knt., 1st Lord Thweng d. bef. 26 Feb 1322/23
Children
  • Katherine de Thweng+2 d. bt 20 Apr 1364 - 28 May 1374
  • Margaret de Thweng+3
  • Lucy de Thweng+4
  • Marmaduke Thweng2 b. aft. 1273, d. 11 Sep 1297
  • William Thweng, 2nd Lord Thweng2 b. aft. 1273, d. bef. 19 Nov 1340
  • Robert Thweng, 3rd Lord Thweng2 b. aft. 1273, d. 22 Apr 1344
  • Thomas Thweng, 4th Lord Thweng2 b. aft. 1273, d. 28 May 1374
  • John Thweng2 b. aft. 1273
  • Nicholas Thweng2 b. aft. 1273
This person was last edited on22 Jul 2021

Citations

  1. [S1947] Douglas Richardson, Royal Ancestry: A Study in Colonial and Medieval Families (Five vols., Salt Lake City, Utah: s.p., 2013), 5:156 (Thweng 7.ii), further cited as Richardson, Royal Ancestry.
  2. [S1947] Richardson, Royal Ancestry, 5:155 (Thweng 7.ii).
  3. [S1947] Richardson, Royal Ancestry, 3:321 (Hotham 9).
  4. [S1947] Richardson, Royal Ancestry, 3:669 (Lumley 12), 5:155 (Thweng 7.ii).