In a bitter twist of irony, Adolf Hitler died the day after the last concentration camp, Dachau, was liberated by American forces. So Hitler did not die "during the Holocaust." Hitler, was, in fact, the architect of an elaborate scheme to wipe out the population of Jews in Europe. He did this through a system of concentration and death camps. This experience has been called the Holocaust, which is a word of Greek derivation to describe an offering by burning.
Adolf Hitler, with Soviet forces closing in, chose to end his own life rather than to account for the crimes he had committed against humanity. He committed suicide on April 30, 1945. The last concentration camp was liberated on April 29, 1945. Both of the events marked the end of a very dark chapter in the history of the world.