Simplify the following text for a Grade 11 native English-speaking person.
Original: Because of their Jewish origin , violinists Norbert Brainin , Siegmund Nissel and Peter Schidlof ( later violist ) were driven out of Vienna after Hitler 's Anschluss of 1938 .
Simplified: Violinists Norbert Brainin , Siegmund Nissel and Peter Schidlof were forced to leave Vienna for London because of their Jewish origin after Hitler 's Anschluss of 1938 .