Humbert II, 1904-83, last king of Italy (1946), son and successor of Victor Emmanuel III. On the abdication (May, 1946) of his father, who was tainted by his long acquiescence (1922-43) to Fascist rule, Humbert succeeded to the throne, pending a referendum on the monarchy. The referendum (June, 1946) resulted in the establishment of a republic, and Humbert went into exile in Portugal.