Simplify the following text for a Grade 10 native English-speaking person.
Original: Sabine Bergmann-Pohl ( born 20 April 1946 ) is a German conservative politician who served as the last head of state of East Germany from 5 April to 2 October 1990 .
Simplified: Sabine Bergmann-Pohl nÃ e Schulz ( born 20 April 1946 ) is a German politician . A member of the Christian Democratic Union of Germany ( CDU ) , she was president of the People 's Chamber of the German Democratic Republic from April to October 1990 and as such the last head of state .