The first record of a spa here stretches back to 1247, during the reign of the Hungarian king Béla IV. It wasn’t until the 15th century that the spa began to be used for regular treatment. Its good reputation reached as far as the courts of prominent European rulers. The services of this "oasis of health and relaxation" were used by many well-known historical figures, including Marie Louise, wife of French Emperor Napoleon I, Russian Tsar Alexander I, Empress Elisabeth (also known as Sissi), wife of Francis Joseph I, and other prominent European noblemen.
Thanks to its location, microclimate, mineral waters and the natural scenery of the picturesque valley surrounded by woods, the spa has the perfect conditions needed to provide treatment for ailments of the respiratory system, circulation conditions, digestive tract and disorders resulting from both physical and mental fatigue. The biggest treasure of the spa is its natural mineral waters, which due to their quality can claim a place among the most important mineral waters in Europe.