Complex sentence: In March 1939, Neurath was appointed Protector ("Reichsprotektor") of the Protectorate of Bohemia and Moravia, serving Hitler's personal representative in the protectorate.
Split into simpler sentences: In March 1939, Neurath was appointed Protector ("Reichsprotektor") of the Protectorate of Bohemia and Moravia. He served as Hitler's personal representative in the protectorate.