angles to each other. Because the ground upon which the new neighbourhood was to be built was boggy and unstable, many houses in the city had to be built on stilts and stakes. As a result of government sponsored building rush, 300 houses stood in Friedrichstadt in 1692, just one year after its founding. Many settlers in the city were Huguenots seeking refuge from the French government. Jerusalem's Chapel, which used to stand outside of the built-up area before, was included into Friedrichstadt's municipal borders and became its first parish church. In 1689 and 1693–1695 Giovanni Simonetti restored and extended the chapel to become Jerusalem's Church, which was continuously staffed with a Calvinist and a Lutheran preacher from 1694 on, thus becoming a simultaneum. In 1701 the Judge Krause at the neighboured Kammergericht (then Supreme Court of Brandenburg) added a sepulchre chapel for his family to the church building. To accommodate more German and French settlers, ground was broken on the constructions of two large churches, the French Church of Friedrichstadt, and the German New Church, in 1701. Construction of new homes continued in the city until 1708. In 1711 at the corner of Jäger and Markgrafen streets a new building for the "Societät der Wissenschaften" (), founded by Gottfried Leibniz, opened. Today the building is occupied by the Berlin-Brandenburg Academy of Sciences and Humanities, which is the third oldest scientific academy in Europe. Through a royal decree issued by king Frederick I on January 18, 1709 Friedrichstadt, along with the cities of Berlin, Cölln, Friedrichswerder, and Dorotheenstadt were to be consolidated into the "Königliche Haupt- und Residenzstadt Berlin" (), effective January 1, 1710. With that, the independence of Friedrichstadt ended, as it was incorporated as a part of the new Berlin. After Frederick I's son, Frederick William I became king, he allowed Berlin, and the Friedrichstadt neighbourhood, to grow considerably. In the 1720s, a new fortified wall was to be constructed. The main construction of the wall took place between 1734 and 1736, however. During this time, a large portion of the military protections between the Friedrichswerder and Friedrichstadt neighbourhoods was removed. The Friedrichstadt neighbourhood was allowed to expand as far as the new fortified security wall. A large proportion of the new residents of the neighbourhood were Huguenots, who continued to be persecuted for their beliefs in France. By 1725, the neighbourhood comprised 700 houses and counted 12,144