Grand Prince Vasili III of Russia had…
1521 CE
Grand Prince Vasili III of Russia had captured and imprisoned in Moscow the Grand Prince of Ryazan, Ivan V, because of his relations with the Crimean Khan Mehmed I Giray.
In 1521, Prince Ivan flees into the Grand Duchy of Lithuania.
After this, in 1521, the Ryazan Principality is merged with Muscovy.