Duke Adolf Friedrich of MecklenburgAdolf Friedrich zu Mecklenburg-Schwerin "Adolf Friedrich Albrecht Heinrich, Duke of Mecklenburg (German: Adolf Friedrich Albrecht Heinrich, Herzog zu Mecklenburg; 10 October 1873 – 5 August 1969), was a German explorer in Africa, a colonial politician, the elected Duke of the United Baltic Duchy from 5 November to 28 November 1918, and the first president of the National Olympic Committee of West Germany (1949–1951)." - (en.wikipedia.org 29.01.2020)