Molodoy

Ivan Ivanovich (Russian: Иван Иванович) or Ioann Ioannovich (Иоанн Иоаннович), also known as Ivan the Young (Russian: Иван Молодой, romanized: Ivan Molodoy; 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. In 1471, he was given the title of grand prince by his father and made co-ruler. In 1485, he was given Tver as an appanage.