The House of Canmore was a royal dynasty that ruled Scotland from the 11th to the 13th centuries. It was founded by Malcolm III, also known as Malcolm Canmore, after his marriage to Margaret of Wessex. This house played a significant role in the unification of Scotland and the establishment of a more centralized monarchy. Members of the House of Canmore included notable kings such as David I, who promoted the spread of Christianity and feudalism in Scotland. The dynasty's influence waned after the death of Alexander III in 1286, leading to a period of instability and the eventual rise of the House of Bruce.