Large rearrangement of the town was carried out after the great fire which had occurred in 1575. Many of the houses in the Old Town were partially or entirely damaged by the fire. It was then that members of the wealthy merchant families began consolidating small parcels and converting existing damaged houses into splendid mansions. The developing city soon reached the status of important judicial centre, thanks to the foundation of Royal Tribunal for Małopolska (Lesser Poland region) in 1578. The Town Hall was then restored, in order to accommodate the Tribunal’s proceedings. At the end of the 16th century new wells were constructed, in addition to two already existing in the corners of the square. Creating such convenience for the citizens was possible because a waterwork had been functioning in Lublin since as early as the 15th century. The wells, being made of bricks and covered with roofs, formed an important part of buildings of the Market Square. At the end of the 17th century there was another rearrangement of the Tribunal. Major changes were introduced. The new shape of the building is probably depicted in the painting exhibited in the church of the Dominican Order, titled Pożar Miasta (The Fire of the City), referring to the tragic fire that occurred on 2 June 1719. The tower was removed, a new front section and stairs were constructed, along with beginning of construction of the second floor.