Judicial Office for Scotland (March 2016). "The Office of Sheriff Principal". www.judicialappointments.scot. Judicial Appointments Board for Scotland. Archived from the original on 30 December 2016. Retrieved 4 April 2017.
Legislation - Records of the Parliaments of Scotland, 1399/1/13. Translation: "Item, it is ordained that each year the king shall hold a parliament so that his subjects are served by the law, which shall begin on the morning after All Hallows' day [2 November], for the next three years."
Judicial Office for Scotland (March 2016). "The Office of Sheriff Principal". www.judicialappointments.scot. Judicial Appointments Board for Scotland. Archived from the original on 30 December 2016. Retrieved 4 April 2017.