Sergente Cosimo Rizzotto was a World War I

World War I

World War I , which was predominantly called the World War or the Great War from its occurrence until 1939, and the First World War or World War I thereafter, was a major war centred in Europe that began on 28 July 1914 and lasted until 11 November 1918...

 flying ace

Flying ace

A flying ace or fighter ace is a military aviator credited with shooting down several enemy aircraft during aerial combat. The actual number of aerial victories required to officially qualify as an "ace" has varied, but is usually considered to be five or more...

 credited with six aerial victories.

World War I

Rizzotto was a prewar aviator before volunteering for pilot training. He was assigned to be a Nieuport

Nieuport

Nieuport, later Nieuport-Delage, was a French aeroplane company that primarily built racing aircraft before World War I and fighter aircraft during World War I and between the wars.-Beginnings:...

 pilot with 77a Squadriglia. Between 28 February 1917 and 15 June 1918, he scored six aerial victories, including one shared with Alvaro Leonardi

Alvaro Leonardi

Alvaro Leonardi was a World War I Sottotenente from Italy and a flying ace credited with eight aerial victories.He was born in Terni, Italy and died in Cameri, Italy.-References:...

; he also had an unconfirmed claim.

Reference

Nieuport Aces of World War 1. Norman Franks. Osprey Publishing, 2000. ISBN 1855329611, 9781855329614.