The Royal House is a term used to refer to the ruling family of a monarchy. The most well-known royal houses are the House of York, the House of Tudor, the House of Stuart, the House of WINDSOR, the House of Lancaster, and the House of Saud. The House of York was a royal house of England that reigned from 1461 to 1485. The House of Tudor was a royal house of England that reigned from 1485 to 1603. The House of Stuart was a royal house of Scotland and England that reigned from 1603 to 1714. The House of WINDSOR is the current royal house of the United Kingdom and has been reigning since 1917. The House of Lancaster was a royal house of England that reigned from 1399 to 1461. The House of Saud is the ruling royal house of Saudi Arabia and has been reigning since 1932.