Vincenzo Giacosa (b. Pinerolo, 29 March 1780)
Giacosa enlisted as a volunteer chasseur à cheval in the Lombard Legion on 7 May 1797, switching thereafter to the artillery and being promoted second lieutenant on the 10th and lieutenant 1st class on the 29th. He became captain 2nd class on 18 January 1798, captain 1st class on 7 July 1803 and battalion chief on 12 November 1804. He was promoted to major on 21 May 1813 in the artillery train (Cf. MSA, WO 1572, 2025, OR 89).