The Principality of Schwarzburg was a small German principality located in the region of Thuringia. It existed from the early 13th century until 1918, when it became part of the newly formed Free State of Thuringia. The principality was known for its picturesque landscapes and small towns, with the capital being Sondershausen. The ruling family, the House of Schwarzburg, played a significant role in the region's history. The principality was characterized by its feudal structure and was involved in various political alliances and conflicts throughout the centuries. Its legacy continues to be recognized in the cultural heritage of Thuringia.