Born in Istanbul in October 1928, Gencer won international recognition after her debut in 1957 at La Scala in Milan as Madame Lidoine in the world premiere of Poulenc's "Les Dialogues des Carmelites".
Known as "La Diva Turca," she performed at La Scala and many other leading world theatres until 1985, accumulating a repertoire of more than 70 roles, notably the great heroines of Donizetti.
She was the artistic director of La Scala Singing Academy when she passed away Friday in her home in Milan.
Gencer's funeral ceremony will be held in Milan on Monday, after which her body would be cremated in line with her will, the Istanbul Culture and Arts Foundation, which organises a voice competition bearing her name, said in a statement carried by Anatolia news agency.
Her ashes will then be brought to Istanbul and scattered in the Bosphorus.
Listen her MARVELOUS: "Coppia iniqua" (Anna Bolena)