Complex sentence: He is the author of'Die Lange Nacht' which was printed in 1967 and translated into English in 2015 as'The Long Night' which is a personal recollection of his time in 7 different concentration camps and several death marches which in 1945.
Split into simpler sentences: He is the author of'Die Lange Nacht' which was printed in 1967 and translated into English in 2015 as'The Long Night'. It is a personal recollection of his time in 7 different concentration camps and several death marches which ended in 1945.