Descendancy for Gertrude, of Supplinburg: Genealogy of the Bryan and Martin Families

Genealogy of the Bryan and Martin Families

- 1225

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1 Gertrude, of Supplinburg ^[1] d. cir 1225
- Floris II, Count of Holland d. 1222
  - 2 Dirk VI, Count of Holland ^[1.1] d. 1157
    - Sophia Wittelsbach d. cir 1160
      - 3 Floris III, Count of Holland ^[1.1.1] d. 1190
        
        Ada, of Scotland b. cir 1140
        
        4 William I, Count of Holland ^[1.1.1.1] b. 1165 d. 1222
        
        Adelaide, of Guelders b. cir 1165
        
        5 Floris IV, Count of Holland ^[1.1.1.1.1] b. 1210 d. 1234 [ =>]