Complex sentence: Adhémar Raynault (July 12 1891-April 11 1984) twice served as mayor of Montreal, Quebec, Canada: from 1936 to 1938, and from 1940 to 1944.
Split into simpler sentences: Adhémar Raynault (July 12 1891-April 11 1984) was a Canadian politician and a Mayor of Montreal. He also served as Mayor from 1936 to 1938, and from 1940 to 1944.