Apparently she was Alexander Sutherland's Mistress:

http://histfam.familysearch.org/getperson.php?personID=I793&tree=Dodge --------------------

• http://our-royal-titled-noble-and-commoner-ancestors.com/p961.htm#i28872
• Catherine Chalmer1
• F, d. after 1456
• Catherine Chalmer married Alexander Sutherland, Baron Dunbeath, son of Robert Sutherland, 6th Earl Sutherland and Margaret Stewart, circa 1422.1 Catherine Chalmer died after 1456.1
• Family Alexander Sutherland, Baron Dunbeath b. bt 1395 - 1400, d. bt 5 Sep 1454 - Feb 1456
• Child
• ◦Marjory (Mary) Sutherland+1 b. c 1430

*Citations

• 1.[S45] Neil Thompson & Charles Hansen, "Ancestry of Charles II, King of England."
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• http://www.thepeerage.com/p10921.htm#i109202
• Alexander Sutherland
• M, #109202
• Last Edited=28 Jun 2008
• Alexander Sutherland lived at Dunbeath, Argyllshire, Scotland.2
• Child of Alexander Sutherland
• 1.Marjory Sutherland+1
• Citations
• 1.[S6] G.E. Cokayne; with Vicary Gibbs, H.A. Doubleday, Geoffrey H. White, Duncan Warrand and Lord Howard de Walden, editors, The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant, new ed., 13 volumes in 14 (1910-1959; reprint in 6 volumes, Gloucester, U.K.: Alan Sutton Publishing, 2000), volume I, page 313. Hereinafter cited as The Complete Peerage.
• 2.[S2] Peter W. Hammond, editor, The Complete Peerage or a History of the House of Lords and All its Members From the Earliest Times, Volume XIV: Addenda & Corrigenda (Stroud, Gloucestershire, U.K.: Sutton Publishing, 1998), page 15. Hereinafter cited as The Complete Peerage, Volume XIV.
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