Erich von Manstein was alive during the First World War.
Fritz Erich Georg Eduard von Lewinski , known as Erich von Manstein -LRB- 24 November 1887 -- 9 June 1973 -RRB- , was a German commander of the Wehrmacht , Nazi Germany 's armed forces during the Second World War.
World War I -LRB- WWI or WW1 -RRB- , also known as the First World War , the Great War , or the War to End All Wars , was a global war originating in Europe that lasted from 28 July 1914 to 11 November 1918.
