The Principality of Reuss Younger Line was a small German principality located in the region of Thuringia. It was part of the larger Holy Roman Empire and existed from the 13th century until the end of the German monarchies in 1918. The principality was ruled by the House of Reuss, which was divided into two lines: the Elder and the Younger. The Younger Line was established in the 14th century and governed a territory that included towns like Gera and Greiz. The principality was known for its cultural contributions and was home to various historical landmarks, reflecting its rich heritage and significance in German history.