1344) was daughter of Prince Ivan of Polatsk and wife of Gediminas, the Grand Duke of Lithuania (1316–1341).
Therefore, some historians cast a serious doubt on her existence, but modern reference works still widely cite her as the ancestress of the Gediminids dynasty.
[1] Some modern historians suggest that Gediminas had two wives, one from local pagan nobles, and Jaunė, an Orthodox.
He argues that an important marriage to a Ruthenian or Polish princess like Jaunė would have been noted in contemporary sources.
[2] The Bychowiec Chronicle mentions that after Jaunė's death, brothers Algirdas and Kęstutis became displeased with Jaunutis, whom Gediminas chose as his heir.