Simplify the following text for a Grade 7 native English-speaking person.
Original: Anne Frank and her sister , Margot , were eventually transferred to the Bergen-Belsen concentration camp , where they both died of typhus in March 1945 .
Simplified: Anne and her sister , Margot , were later taken to the Bergen-Belsen concentration camp . There , they both died from typhus in March 1945 .