Mechtild of Cuyck-Arnsberg (b. 1250) Parents Adelaide of Blieskastel Gottfried III Children Gottfried von Waldeck Otto I Adolf II of Waldeck Adelaide of Waldeck Siblings Adelheid of Cuyck-Arnsberg Ludwig Ida of Arnsberg-Rietberg Agnes von Arnsberg Gottfried, Graf von Arnsberg Johannes von Arnsberg Sophie of Cuijck-Arnsberg Partners Henry III, Lord of Waldeck