Main
Mechthild Cuyk von Arnsberg was born circa 1235 to Gottfried III. von Arnsberg (c1214-c1286) and Adelheid von Blieskastel and died circa 1298 of unspecified causes. She married Heinrich von Waldeck (c1227-1267) .
Children
| Name | Birth | Death | Joined with |
| Adolf II. von Waldeck (c1250-1302) | |||
| Gottfried von Waldeck (?-1324) | |||
| Otto I. von Waldeck (c1262-1305) | 1262 | 1305 | Sophie von Hessen (c1264-1331) |
| Adelheid von Waldeck (c1264-c1340) | 1264 | 1340 | Simon I. zur Lippe (c1261-1344) |
Footnotes (including sources)
| ‡ General |