| William (Willem) I of Holland Count of Holland (~1167 - 1221) |
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| Adelaide of Guelders Countess von Gelders (van Gelre) (~1187 - 1217) |
| William Count of Holland |
| b. abt 1206, The Hague, South Holland, Netherlands d. 30 Aug 1238 bur. occ. cen. im. . ud. |