Constant Alexander Hope Loudon (1907-1997) (1907–1997) Parents Willem Constantijn Hope Loudon Jeanne Lucie van der Wyck Children Cornelie Lucie Anne Loudon James Hubert Hope Loudon Maximiliaan Ernest Alexander Loudon Frederik Willem Constantijn Loudon Siblings Alice Frederique Loudon Partners Maria Arnoudina Wilhelmina van Asch van Wijck Alice Adolphine van Tuyll van Serooskerken