Louisa Wiarda (born 1933) (b. 1933) Parents Gerard Wiarda Alexandra Moltzer Children Diederik Constantijn Baron van Wassenaer Alexander Philips Willem Baron van Wassenaer Geertruid Meilende Barones van Wassenaer Arent Godfried Jan Baron van Wassenaer Partners Arent Jacob Otto van Wassenaer van Catwijck