Charter by William de Pol, burgess of Donde, to John Byrd, burgess of Perth, in free marriage with Agnes, his sister, of one merk annually from the land which Adam of Lyn holds of the granter in the Northgate of Perth., 10 July 1321., Ch.6006. Charters, writs and formal papers mainly concerning the Halketts of Pitfirrane and the Wedderburns of Gosford., Ch.6001-7360. National Library of Scotland Archives and Manuscripts Division. https://nlssb.as.atlas-sys.com/repositories/2/archival_objects/1263 Accessed September 23, 2024.