The House of Folkung was a royal dynasty that ruled in Sweden during the late medieval period, particularly from the 13th to the 16th centuries. It is known for its significant influence on Swedish politics and culture, with several notable kings, including Birger Jarl and Magnus Ladulås, who contributed to the establishment of a more centralized state. The Folkung dynasty is often associated with the rise of the Swedish monarchy and the development of the Swedish Church. Their reign saw the expansion of territory and the strengthening of royal power, laying the groundwork for future governance in Sweden.