It depends entirely on the time in question.
i know is that it is a woman- Angela Merkel is current chancellor.
Paul von Hindenburg was elected president in 1925.
He was elected for chancellor and when the president died Hitler siezed the opertunity and merged Chancellor and president into one.
The head of government is the chancellor(Bundeskanzler or Bundeskanzlerin for a female chancellor), roughly equivalent to a prime minister. Germany has a separate head of state, who is the president(Bundespräsident).
Hitler was the ruler of Germany Hope this answers your question :)
Germany has a president.
Ruler? The president is Ivo Josipovic(ć).
Adolf Hitler was the ruler of Germany from 1933 until the beginning fo WW2.
President Paul Von Hindenburg. He died in office in 1934. He was succeeded by Hitler who came in as Führer & Chancellor.
President Franklin Delano Roosevelt. When he died in April 1945, shortly before the defeat of Nazi Germany, he was succeeded by the Vice President, Harry S Truman.
From 1933-1945, he was.