Kingdom of Germany

In medieval history, the Kingdom of Germany (Latin: Regnum Teutonicum) was the original core of the Holy Roman Empire, which continued to be distinguished from other parts of the empire such as the Kingdom of Italy and the Kingdom of Burgundy. It evolved from the eastern Frankish kingdom formed by the Treaty of Verdun in 843, which split the Carolingian Empire. The Kingdom of Germany originally consisted of several identifiable regions which became the stem duchies of Saxony, Franconia, Thuringia, Bavaria, and Swabia, and in the 10th century it consolidated its hold on Lotharingia. In modern geographical terms, it eventually expanded to include modern Germany, Austria, Slovenia, Luxembourg and the Netherlands, along with significant parts of Switzerland, Belgium and France.