The Principality of Slavinia, later known as the Kingdom of Slavinia (Latin: Regnum Slaviniae; Slavin: Kraljevina Slavinajia), officially the Kingdom of Slavinia and Sarbia (Regnum Slaviniae et Sarbiae; Kraljevina Slavinaje i Sarbiae) from 1060 to 1091, was a medieval kingdom in the Rothoi Peninsula in southern Grandia Branda Region of Eridana comprising most of west part of Ruthenia. The Kingdom existed, first as a Doux dependent of the Rothoi League later as a sovereign state for nearly two centuries. Its existence was characterized by various conflicts and periods of peace or alliance with the Selloi and Kormenians and competition with Mauria for control over the western coast.