Simplify the following text for a Grade 9 native English-speaking person.
Original: Otto MeiÃ ner ( 13 March 1880 , Bischwiller , Alsace â `` 27 May 1953 , Munich ) was head of the Office of the President of Germany during the entire period of the Weimar Republic under Friedrich Ebert and Paul von Hindenburg and , finally , at the beginning of the Nazi era under Adolf Hitler .
Simplified: Otto MeiÃ ner ( 13 March 1880 in Bischwiller â `` 27 May 1953 in Munich ) was a German politican . He is well known for his work as head of the office of the presidents of Germany during the Weimar Republic , under Friedrich Ebert and Paul von Hindenburg .