President of Germany
Friedrich Ebert (SPD) served as Germany's first president, followed by Paul von Hindenburg. The office effectively came to an end upon Hindenburg's death in 1934 and its powers merged with those of chancellor. Adolf Hitler now ruled Germany as "Führer und Reichskanzler", combining his previous positions in party and government. The office, however, was not abolished and briefly revived at the end of the Second World War when Hitler appointed Grand Admiral Karl Dönitz as his successor as President of Germany. Dönitz agreed to the surrender to the Allies and was arrested a few days later.
List of heads of state of Germany
From 1871 to 1918 the head of state was the Emperor, who was the same person as the King of Prussia according to the Constitution. Germany became a republic under the Constitution of 1919 and the monarch was replaced by a President with semi-presidential powers. In 1934 when President von Hindenburg died, Chancellor Adolf Hitler called for a referendum in 1934 which was to merge the offices of President and Chancellor, after the result he became Führer and Chancellor.