century BC, which was turned into an important stronghold, balneological resort and trade junction called Pautalia by the Romans in the 1st century AD, from a Thracian word meaning "source", "spring". In the 11th C. the town, known as Velbuzhd, after the name of its heir, Konstantin Velbuzhd, became a major religious and administrative centre. About 1355 Velbuzhd and its region were included in the semi-independent feudal Velbuzhd principality of Despot Deyan. In the 15th C. the town was called Kyustendil, which means a land of Konstantin.
Kyustendil is a national balneological resort at an altitude of 500 m. There are more than 40 mineral springs in the town. The mineral water utilized in our services has the following characteristics: high pump-capacity of 33 l/sec; it is hyper thermal +73 οC; it is enriched with hydrocarbonic – sulphate sodium, silicon, sulphide-sulphuretted hydrogen, and alkaline pH 9.15. Due to its qualities, it is extremely effective for treatment of male and female sterility, disorders of the locomotors system, trauma-orthopedic and neurological diseases.