Peter diesThe Mauthausen concentration camp was liberated by American troops on 5 May 1945. According to a list kept by the medical staff, Peter van Pels died on 10 May 1945. He was 18 years old.Read more about this in the Knowledge BaseNextNewly arrived prisoners are assembled in the Appellplatz (roll call area) at Camp Melk, 1944-1945Foto Collection United States Holocaust Memorial Museum