The Bagratid dynasties – Bagratuni (Բագրատունյաց) in Armenia and Bagrationi (ბაგრატიონი) in Georgia – count among the longest-reigning royal families in the Caucasus (and in Europe), starting as princely houses and attaining to the royal status in both countries in the 9th century. The origins of the Bagratids are disputed though more widely accepted version has it that the both dynasties had common roots, beginning in Armenia and branching later into Georgia. The Armenian house went extinct by the 12th century, while the Georgian line, continues to this day. The root of the names Bagrationi and Bagratuni, Bagrat-, derives from the Old Persian Bagadāta, "God-Given". In Armenia and Georgia, the respective names for the Bagratid dynasties literally translate to "The children of/house established by Bagrat" (Bagrat + Classical Greek: - id, "the children").