Complex sentence: Fauré escaped to Rambouillet where one of his brothers lived, and then travelled to Switzerland, where he took up a teaching post at the École Niedermeyer, which had temporarily relocated there to avoid the violence in Paris.
Split into simpler sentences: Fauré escaped to Rambouillet where one of his brothers lived. He travelled to Switzerland, where he took up a teaching post at the École Niedermeyer, which had temporarily relocated there to avoid the violence in Paris.