Simplify the following text for a Grade 11 native English-speaking person.
Original: During 1933 and 1934 , Hitler was very aware of the fact that President Hindenburg was his only superior as well as the Supreme Commander-In-Chief of the German armed forces , and given that Hindenburg was a revered figure in the German Army , that if the President decided to remove Hitler as Chancellor , there was little doubt that the Reichswehr would side with Hindenburg .
Simplified: Hindenburg hated the idea of Hitler as Chancellor , but under pressure from MeiÃ ner , von Papen and Oskar Hindenburg the President decided to appoint Hitler Chancellor . On the morning of 30 January 1933 , Hindenburg swore Hitler in as Chancellor at the Presidential Palace .