King Charles I of Württemberg was the ruler of the Duchy of Württemberg from 1816 until his death in 1864. He was born on March 6, 1807, and became known for his efforts to modernize the duchy, promoting education, infrastructure, and industry. His reign marked a period of significant development in the region. Charles I was a member of the House of Württemberg and succeeded his father, King Frederick I. He played a crucial role in the political landscape of Germany during the 19th century, navigating the complexities of the German Confederation and advocating for the interests of his duchy.