Born in Milan on April 19, 1864, of a princely family, brother of Paolo, sculptor. His first teacher was Daniele Ranzoni, whose manner the young man resented; later Achille Tominetti led him. The Troubetzkoy gradually managed to acquire a personality of its own. At a very young age he made his debut in Brera with a self-portrait, currently owned by his brother, prince engineer Luigi. Then, barely eighteen, he went to England, where he made portraits of personalities: among others, of Prime Minister Gladstone, now in the Scottish National Portrait Gallery in Edinburgh. Later he went to America, first to New York, then to Washington, continuing his fruitful activity as a portraitist, and exhibiting works in the main exhibitions. Among his portraits are those of Mr. Justice Harlan, Anna Maria Gallina and Giacinto Gallina, in the Turri Gallina collection in Milan, of his wife, his brother Luigi and his brother Paolo, who together with Alba on Lake Maggiore are the property of his brother. ing. Luigi, of the countess Cassini, of the count Giuseppe della Gherardesca; by miss Bessie Abbott; by mrs. Henry Lane; by mrs. Alexander Hewart; by mrs. Hilson Hutchins; by General George A. Gariestone; of the Viscountess of Castlereagh; by mrs. Benjamin Gainness. An admired stairway of the Milan Cathedral is also remembered of him. He died in Charlottesville (United States) in 1936.