He was born in Athens in 1884 and died in Athens in 1959. He was the brother of renowned composer, lyricist and singer Attik (real name Kleon Triantafyllou), coming from a wealthy family of Egyptiotes (Greeks of Egypt). He studied law at the Athens University and music at the Athens Conservatoire (1902, under M. Veloudios). In the period 1909-1913 he studied at the Conservatoire de Paris, from where he graduated in 1913 with first prize. Subsequently, he joined the Opéra-Comique, debuting there as Turiddu [Rustic chivalry/Cavalleria rusticana]. From 1917 to 1959 he was a melodrama professor at the Athens Conservatoire and the National Conservatoire. His students included some renowned artists, such as the sopranos Mireille Flery and Anthi Zacharatos, the basses George Terzakisand V. Giannoulakos and the contralto Yolanda Di Tasso. He brought to forefront the Athens Conservatoire school of melodrama, staging many operas in a period of seven years, including: Werther, La bohème, Tosca, Aida, Rigoletto, Carmen and Rustic chivalry [Cavalleria rusticana]. During the period 1943-1957 he worked with the NGO in the productions and/or revivals. He directed nine operas and two operettas. He directed the GNO premieres of the operas of the works Manon (1943-44), La boheme (1947-48), Ein Walzertraum (1948-49), Iphigénie en Tauride (Odeon of Herodes Atticus, 1945/46), Mignon (1946-47), Alceste (Odeon of Herodes Atticus, 1947-48). He also directed the GNO premieres of the Greek works The Godson [O vaftistikos] (1945-46), The Evening of Love [To apogevma tis agapis] by Varvoglis (1943-44), Lestenitsa by Sklavos (1946-47), The sunless King [O vasilias aniliayos] by Nezeritis (1947-48), The Tartuffes [I Tartoufoi] by Yagakis (1948-49). He was a member of the GNO Artistic Committee (1945). // Last update of the biography: March 2019 - The list of the productions below is continually updated.