Family: Dietrich II, Count of West Friesland / Hildegarde of Flanders (F4148)  ^[1] 

• Male Dietrich II, Count of West Friesland

  
  

  Birth	Abt 905
  Death	6 May 988
  Burial
  Marriage	940 - 945  [1]
  Father	Dietrich I, Count of West Friesland | F4556 Group Sheet
  Mother	Geva | F4556 Group Sheet

  
  

  Female Hildegarde of Flanders

  
  

  Birth
  Death	10 Apr 990
  Burial
  Father	Arnold I, Count of Flanders and Artois | F2473 Group Sheet
  Mother	Adelaide de Vermandois | F2473 Group Sheet

  
  

  Male Arnulf I, Count of West Friesland and Ghent

  
  

  Birth
  Death	18 Sep 993
  Burial
  Spouse	Luitgarde of Luxemburg | F4147
  Marriage	Abt 980

  
  

• Sources

  [S60] Stuart, Roderick W. Royalty for Commoners, The Complete Known Lineage of John of Gaunt, Son of Edward III, King of England, and Queen Philippa Fourth Edition, (Baltimore, Maryland: Genealogical Publishing Company, 2002).