Ancestry of
Calvin Coolidge

30th U.S. President

William de Montagu

View famous kin of William de Montagu

• • 24th Great-grandfather of Calvin Coolidge — 27th Generation
  • Ahnentafel No:
  • 94011200 
  • Father:
  • Richard de Montagu 
  • Mother:
  • Alice -----   
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  • Death Date:
  • BY 29 Jun 1217 
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  • Spouse Name:
  • Isabel -----
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  Drew de Montagu (Ahnentafel No:47005600 )

  Isabel de Montagu

• Sources for William de Montagu

  • ¹ Richardson, Douglas, Royal Ancestry: A Study in Colonial and Medieval Families, Salt Lake City, Utah: Douglas Richardson (2013), Vol. II, p. 397.
  • ² Richardson, Douglas, Royal Ancestry: A Study in Colonial and Medieval Families, Salt Lake City, Utah: Douglas Richardson (2013), Vol. IV, pp. 109-110.