They divorced in 1956.[1] Philippe is a director of Paris Orleans PA, a French investment bank belonging to the Rothschild family.[2] Philippe is married to Princess Sophie de Ligne, the daughter of Belgium's Antoine, Prince of Ligne and princess Alix of Luxembourg. In 1957, she married her third cousin once-removed Baron Guy de Rothschild, (1909–2007) head of the de Rothschild Frères bank. They were married on February 17, 1957 in New York City.