The House of Přemysl was a royal dynasty that ruled over the Czech lands from the 9th to the 14th centuries. It is one of the oldest noble families in Central Europe and played a significant role in the formation of the Czech state. The dynasty is known for its influential kings, including Wenceslas I and Charles IV, who contributed to the cultural and political development of the region. The Přemyslid dynasty is often associated with the establishment of the Prague Castle and the founding of Prague as a major European city. Their reign saw the spread of Christianity and the development of trade and commerce in the area. The dynasty eventually declined, leading to the rise of other noble families in the region.