In Transylvania, after the establishment of the Union of Three Nations and the suppression of the Bobâlna Uprising in 1438, the Vlach law gradually disappeared while the Romanian masters and boyars (which enjoyed the "Universitas Valachorum") had to choose between three solutions: the loss of all rights and the fall into serfdom, having to migrate beyond the Carpathians to Moldova or Wallachia, or merging into the Hungarian nobility by converting to Catholicism and adopting the Hungarian language (the case of the Hunyadi family, for example). The last written document attesting the "Universitas Valachorum" dates from May 1355, when the general assembly ("Congregatio Generalis") of the Transylvanian estates was convened in Turda.