 Complete the following phrase:  Richard von Weizsäcker was born on 15 April 1920 in the New Palace in Stuttgart, the son of diplomat Ernst von Weizsäcker, a member of the Weizsäcker family, and his wife Marianne von Graevenitz, a daughter of Friedrich von Graevenitz 1861-1922, a General of the Infantry of the Kingdom of Württemberg. Ernst von Weizsäcker was a career diplomat and a high-ranking official in the Foreign Ministry in the 1930s. The youngest of four children, Weizsäcker had two brothers, the physicist and philosopher Carl Friedrich von Weizsäcker and Heinrich von Weizsäcker who fell as a soldier in Poland at the beginning of World War II. The sister Adelheid 19162004 married Botho-Ernst Graf zu Eulenburg-Wicken 19031944, a land owner in East Prussia. Richards grandfather Karl von Weizsäcker had been Prime Minister of the Kingdom of Württemberg, and was ennobled in 1897 and raised to the hereditary title of Baron Freiherr in 1916. His term in office ended in 1918, shortly before the monarchy was abolished in the 