Lake Balaton Lake Balaton Lake Balaton ( , , ) is a freshwater lake in the Transdanubian region of Hungary. It is the largest lake in Central Europe, and one of the region's foremost tourist destinations. The Zala River provides the largest inflow of water to the lake, and the canalised Sió is the only outflow. The mountainous region of the northern shore is known both for its historic character and as a major wine region, while the flat southern shore is known for its resort towns. Balatonfüred and Hévíz developed early as resorts for the wealthy, but it was not until
Lake Balaton the late 19th century when landowners, ruined by "Phylloxera" attacking their grape vines, began building summer homes to rent out to the burgeoning middle classes. In Hungarian, the lake is known simply as "Balaton". It was called "lacus Pelsodis" or "Pelso" by the Romans. The name is Indo-European in origin (cf. Czech "pleso" ‘sinkhole, deep end of a lake’), later replaced by the Slavic *"bolto" (Czech "bláto", Slovak "blato", Polish "błoto") meaning 'mud, swamp' (from earlier Proto-Slavic "boltьno", , ). Slavic prince Pribina began to build in January 846 a fortress as his seat of power and several churches in