[1] His parents were Peter Paul, an attorney, and Artemisia Colosimo.
[1] On 6 November 1892 he elected a deputy from the constituency of Serrastretta, province of Catanzaro, and served in the parliament until 1921.
[2] Colosimo replaced Ferdinando Martini as minister of colonies.
[3] When he was in office he developed a program for Italian colonies which focused on East Africa in general and Ethiopia in particular.
[4] It was the first official document which clearly articulated the colonial goals of the Italian Empire.