Eugenie Mary Loudon (born 1941) (b. 1941) Parents James Willem Loudon Margarethe Katharine Osieck Children Alexandra Nadia van Tuyll van Serooskerken Bryony Emilie Elise van Tuyll van Serooskerken Reinout James Frederick van Tuyll van Serooskerken Sabine Margaretha Renée van Tuyll van Serooskerken Siblings James Alexander Loudon Lydia Frederika Loudon James Theodore Loudon Ronald Henry Loudon Erik Hugo Loudon Margaretha Eugénie Adrienne Loudon Partners Hans Willem Reinier van Tuyll van Serooskerken