Legend has it that the healing springs in the area of the current spa were discovered by a lame shepherd looking for a stray sheep. When looking for the sheep, he found a lake with a sulfuric smell. After bathing in it a few times, he noticed that the sheep was getting better, therefore he decided to immerse his aching limbs in the warm water of the lake. The rumour of the miraculous water began to spread. Suffering ill people started coming to this place to bath in the healing waters of the springs.
The first record on the hot springs is from 1247. From the thirteenth to the sixteenth century, Trenčianske Teplice, as well as the springs, were owned by the rulers of the Trenčín Castle. However, it is assumed that the springs had already been known to Quadi tribes as well as the Roman legions in the 2nd century.
The greatest merit to the development of the spa in Trenčianske Teplice is attributed to the llésházy family who owned the spa for 241 years. At that time, it was one of the most important spas in the Austro-Hungarian Empire.
In 1835, the spa was bought by the Viennese financier George Sina, who rebuilt and modernized it. His son Simon built a hotel and expanded the spa park. In 1888, his daughter Iphigenia had the most valuable historical monument preserved to this day, the Hammam spa in oriental Moorish style, built next to the piscina room Sina.
