Ancestry of
George Manney Ayer

(1840–1914)

Katherine de Thweng

View famous kin of Katherine de Thweng

• • 16th Great-grandmother of George Manney Ayer — 19th Generation
  • Ahnentafel No:
  • 364667 
  • Father:
  • Marmaduke de Thweng 
  • Mother:
  • Isabel Ros   
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  • Death Date:
  • from 20 Apr 1364 to 28 May 1374 
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  • Spouse Name:
  • Ralph Daubeney
  • Marriage Date:
  • BEF 8 Feb 1345/1346 
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  • Child:

  Elizabeth Daubeney (Ahnentafel No:182333 )

• Sources for Katherine de Thweng

  • ¹ Maclean, Sir John, The Parochial and Family History of the Parishes of Forrabury and Minster in the County of Cornwall, Exeter: William Pollard (1873), 63.
  • ² Richardson, Douglas and Kimball G. Everingham, editor, Magna Carta Ancestry: A Study in Colonial and Medieval Families, 2nd edition, Salt Lake City, Utah: Douglas Richardson (2011), Vol. 4, pp. 193-194.