Hugo Eugen Rietmann, later known by the Italianized name Ugo (Calprino, 26 August 1886 â Milan, 2 October 1959), was a Swiss-born naturalized Italian entrepreneur, footballer, referee, and manager, who played as a midfielder.
A member of the ancient ruling patrician Rietmann family of St. Gallen, he is best remembered in sporting history as one of the 44 founding members of Inter Milan. In 1948, on the occasion of the 50th anniversary of the F.I.G.C. (Italian Football Federation), he was honored with the title of Pioneer of Italian Football.
Born in Calprino (renamed Paradiso in 1929) in the Canton of Ticino to Werner Rietmann and Maria Schlegel, he belonged to a historic Swiss patrician lineage. Rietmann settled in Milan, where he established himself as an entrepreneur and merchant in the textile industry, with offices located at Piazza della Scala No. 4.
Despite holding Swiss citizenship, he maintained a deep bond with Italy. During the Great War, he volunteered for the Royal Italian Army, serving as an officer in the Italian Red Cross.
He is buried at the Monumental Cemetery of Milan in the section dedicated to Protestants, listed among the "Illustrious Burials" of the cemetery.
A passionate athlete, Rietmann began his football career playing for various Milanese and Lombard clubs of the era, including SEF Ginnastica Mediolanum, Foot-Ball Club Bergamo, and AC Milan. While at Milan, however, he never made an official appearance for the first team.
His legacy is inextricably linked to March 9, 1908. That evening, at the L'Orologio restaurant in Milan, Rietmann and his brother Hans were among the 44 dissidents who broke away from Milan to sign the founding charter of Foot-Ball Club Internazionale (Inter Milan). His name appears on the original founding document alongside other pioneers such as Giorgio Muggiani and the Hintermann brothers. During the founding meeting, his brother Hans was proposed as the club's first Economo (Treasurer), though the position was ultimately awarded by vote to Mr. Bosisio, then Secretary of the Italian Football Federation.
As a player for Inter, Rietmann occupied the role of midfielder. His time on the pitch was brief:
After retiring from active play, Rietmann became a central figure in Italian football institutions: