Albert Speer ( 19 March 1905 in Mannheim - 1 September 1981 in London ) was a German architect . Albert Speer , born Berthold Konrad Hermann Albert Speer , ( ; March 19 , 1905 â `` September 1 , 1981 ) was a German architect who was , for a part of World War II , Minister of Armaments and War Production for the Third Reich .