Margaret of Holland, Countess of Henneberg Countess of Holland by birth and by marriage Countess of Henneberg (1234–1277) Parents Matilda of Brabant Floris IV, Count of Holland Children Judith of Henneberg-Coburg Herman II, Count of Henneberg Poppo VIII of Henneberg Siblings Floris de Voogd Adelaide of Holland William II of Holland Partners Herman I, Count of Henneberg