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Ivan Ivanovich (also known as, Ivan the Young, Ioann Ioannovich and Ivan Molodoy) ("Иван Иванович", "Иоанн Иоаннович", "Иван Молодой" in Russian) (15 February 1458 – 6 March 1490), was the eldest son and heir of Ivan III of Russia from his first marriage to Maria of Tver.