| Name | Witte | |
| Birth | Abt 1280 | |
| Gender | Male | |
| Occupation | heer van Haemstede | |
| Death | 1321 | |
| Person ID | I10448 | Martherus |
| Last Modified | 9 Nov 2006 | |
| Father | Floris V, der Keerlen God, b. Jul 1254, Leiden, South Holland, The Netherlands d. 27 Jun 1296, Muiderberg, Noord-Holland, The Netherlands (Age 41 years) | |
| Mother | Anna van Heusden, b. Abt 1255 | |
| Family ID | F6048 | Group Sheet | Family Chart |
| Family | Agnes van der Sluys, b. Abt 1285 | |||
| Marriage | Bef 1307 | |||
| Children |
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| Family ID | F6046 | Group Sheet | Family Chart | ||
| Last Modified | 9 Nov 2006 | |||