In 1933, he was sent to Schule Schloss Salem in Germany, which had the "advantage of saving school fees" because it was owned by the family of his brother-in-law, Berthold, Margrave of Baden.
În 1933 Filip a fost trimis la Schule Schloss Salem din Germania, care avea avantajul "că economisește taxele școlare" deoarece aparținea cumnatului său, Berthold, Margraf de Baden.