Reginald Charles Alfred Arthur de Croÿ Belgian diplomat (1878–1961) (1878–1961) Parents Alfred Emanuel Prinz von Croÿ Elizabeth Mary Parnell Children Princess Diane de Croy Yolande Marie Ernestine Emma Isabelle Prinzessin von Croÿ Siblings Marie de Croÿ Leopold Marie Charles Edouard Emmanuel Prinz von Croÿ Partners Princess Isabelle de Ligne