Sir Martin Gilbert was Winston Churchill's official biographer, and one of Britain's leading historians. His The Holocaust: The Jewish Tragedy is considered the classic work on the subject, and he is the author of more than sixty other books, including Churchill: A Life, First World War, Second World War, Israel: A History, A History of the Twentieth Century, The Righteous, Auschwitz and the Allies and Jerusalem in the 20th Century.
Martin Gilbert died in February 2015.