'Royal Letters belonging to the Most Honourable George, Marquess of Tweeddale, K. T. in the Charter Room at Yester 1538-1747. Arranged at Edinburgh 1869', by Sir William Fraser., 1538-1747., MSS.7102-7103. Correspondence and papers of the Marquesses of Tweeddale, formerly preserved at Yester House., MSS.7001-7120. National Library of Scotland Archives and Manuscripts Division. https://nlssb.as.atlas-sys.com/repositories/2/archival_objects/37160 Accessed September 23, 2024.