The begging of the use of water da Piedade with therapeutic purposes is unknown. According to some studies, the natural spring of water has been explored during the Romanizing period.
It is considered the first thermal building, created by the Cister religious order in the times of Cardinal-King D. Enrique I, when curative baths were taken there.
During the 20th century, the entity passed through the hands of several owners until it becomes the actual society Termas da Piedade Lda., which has renovated the hotel sector since 1981. Water da Piedade was used to end up with digestive system pain, skin problems, and muscular inflammations. In 1997 thermal activity in this water was interrupted due to some modifications in the water characteristics. Nevertheless, Your Hotel & Spa was built taking in count this water will be used in the future.
The idea of increase thermal activity with water of Piedade was maintained during the years. In 2019 Termas da Piedade emerged again and got into the Spa from the Hotel becoming a thermal spa using the centenary water da Piedade.