City hospital of Saint John was built within the fortress walls, but its exact location is not known. Emperor Charles VI signed the Belgrade City Statute in 1724 ("Proclamation on organizing German Belgrade"), which mentions city hospital, city pharmacy, medics and midwives. The German municipality had low incomes so it had to ask the state for help and beneficence. The hospital is mentioned in the 1728 Census. It was a hospital already in 1719, later becoming the residence of Thomas Berger, the head of the hospital. After his death, his daughter continued to reside in the building. The hospital (Stattspital) was moved to another location, into the newly constructed building in 1724. A small church was built next to it. This new hospital was quite small, with only 2 rooms, a kitchen and a basement, so it way not be the same city hospital. Lazaret or a quarantine hospital is not mentioned in the documents, but it is safe to presume that it had to be formed during the viral outbreaks, as was usual in the time. The procedure in case of outbreaks was probably analog to the existing procedure in Buda, the capital of Hungary. Today unidentified disease ravaged Belgrade in 1730. Viral epidemic killed a lot of people. During the course of only two weeks, just the Jesuits buried 220 people and themselves lost 3 missionaries. The extremely massive plague outbreak hit the city in October 1738. As the Austrian army retreated in front of the advancing Turks, numerous civilians fled to the fortress, many of them being contagious. Having so many people in a cramped space, triage was not possible so the plague spread quickly. There are reports of the dead lying in the streets for days as there was no one to bury them. The Austrian garrison was decimated and the corpses of the soldiers who died of plague were burned with their personal properties. After Austria lost the Austro-Turkish War of 1737–1739, northern Serbia, including Belgrade, was returned to the Turks. One of the provisions of the 1739 Treaty of Belgrade stated that Austria had to demolish all the fortifications and military and civilian building it had constructed during the occupation. Many Baroque buildings were demolished within the fortress. However, Austria didn't demolish the buildings outside of the fortress walls. That way, the House at 10 Cara Dušana Street, built 1724–1727, in the neighborhood of