Westphalia as a small state within Germany in the form of a principality until 1918 and as a free state until 1946. This continues to influence the identity of its people who often distinguish themselves from neighboring regions such as East Westphalia. In addition to these historic, lingual and religious aspects, there are some regional differences in culture and mentality. That is why many of the citizens of North Rhine-Westphalia rather see themselves either as "Rhinelanders", "Westphalians" or "Lippers" rather than as "North Rhine-Westphalians". Westphalia is known for the 1648 Peace of Westphalia which ended the Thirty Years' War, as the
Treaty of Belgrade the autonomy of Kingdom of Serbia which had existed since 1718. This territory would await the next Habsburg-Ottoman war to be temporarily again included into the Habsburg Monarchy in 1788 with the help of Koča Anđelković. Treaty of Belgrade The Treaty of Belgrade, known as the Belgrade peace was the peace treaty signed on September 18, 1739 in Belgrade, Habsburg Kingdom of Serbia (today Serbia), by the Ottoman Empire on one side and the Habsburg Monarchy on the other, that ended the Austro–Turkish War (1737–39). This treaty ended the hostilities of the five-year Austro-Russian–Turkish War (1735–39), in which the Habsburgs