Ancestry of
Boris Johnson

Prime Minister of the United Kingdom

Katherine de Grandison

View famous kin of Katherine de Grandison

• • 23rd Great-grandmother of Boris Johnson — 26th Generation
  • Ahnentafel No:
  • 47330707 
  • Father:
  • William de Grandison 
  • Mother:
  • Sibyl de Tregoz   
  • Birth Date:
  • ABT 1304 
  • Birth Location:
  •  
  • Christening Date:
  •  
  • Christening Location:
  •  
  • Death Date:
  • 23 Apr 1349 
  • Death Location:
  •  
  • Burial Date:
  •  
  • Burial Location:
  •  
  • Spouse Name:
  • William de Montagu
  • Marriage Date:
  • ABT 1327 
  • Marriage Location:
  •  
  • Children:
  
  

  William de Montagu

  John de Montagu

  Sibyl de Montagu

  Philippa de Montagu (Ahnentafel No:23665353 )

  Elizabeth de Montagu

  Agnes de Montagu

  • Notes: 

  • Some older sources give Otto (or Otho) de Grandison as the father of Catherine de Grandison.

• Sources for Katherine de Grandison

  • ¹ Richardson, Douglas, Royal Ancestry: A Study in Colonial and Medieval Families, Salt Lake City, Utah: Douglas Richardson (2013), Vol. IV, pp. 115-118.
  • ² Richardson, Douglas and Kimball G. Everingham, Plantagenet Ancestry: A Study in Colonial & Medieval Families, 2nd Edition, Salt Lake City, Utah: Douglas Richardson (2011), Vol. III, p. 190.
  • ³ Wikipedia, "Cathering Montagu, Countess of Salisbury", _Countess_of_Salisbury, (accessed 02/23/2010).
  • ⁴ Wikipedia, "William Montagu, 1st Earl of Salisbury", _1st_Earl_of_Salisbury, (accessed 02/23/2010).

Boris Johnson photo by Ben Shread (U.K. OGL v3.0)