Career
Aged 40, he competed in four events at the 1936 Winter Olympics with the best result of 28th place over 10,000 m. De Ligne was a successful businessman and a decorated officer, who fought in World War I and was part of the Belgian underground movement during World World War II, helping to rescue downed Allied pilots. She hired a man to kill de Ligne and made it look as if he was killed by the Gestapo.
The murder was solved in 1945.
Yvonne de Ligne was sentenced to 15 years, but was release after six years due to poor health, and died from tuberculosis shortly afterwards.