| Name | Willem II | |
| Birth | 1227 | |
| Gender | Male | |
| Occupation | graaf [count] van Holland en Zeeland, Rooms Koning [deputy king of Germany] (3 Oct 1247) | |
| Death | 28 Jan 1256 | Hoogwoud, Noord Holland, The Netherlands |
| Person ID | I10455 | Martherus |
| Last Modified | 9 Nov 2006 | |
| Father | Floris IV, b. 24 Jun 1210 d. 19 Jul 1234, Noyon, France (Age 24 years) | |
| Mother | Mathilde van Brabant, b. Abt 1205 d. 212 Dec 1267, Loosduinen, Zuid-Holland, The Netherlands | |
| Marriage | Bef 6 Dec 1224 | Antwerpen, Belgium |
| Family ID | F6052 | Group Sheet | Family Chart |
| Family | Elisabeth van Brunswijk, b. 1229 d. 27 May 1266 (Age 37 years) | |||
| Marriage | 25 Jan 1252 | Brunswijk, Germany |
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| Children |
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| Family ID | F6050 | Group Sheet | Family Chart | ||
| Last Modified | 9 Nov 2006 | |||