Anna, Grand Duchess of Lithuania

Anna or Ona Vytautienė was Grand Duchess of Lithuania (1401–1418). She was probably the first wife of Vytautas the Great, Grand Duke of Lithuania, as well mother of his only known child, Sophia, the wife of Vasily I of Moscow. She is best remembered for helping Vytautas to escape from a prison in Kreva in 1382 and thus probably saving his life. Little is known about Anna's life and even her origins remain disputed by historians.