CNTC Angela Lady Buchan Hepburn of Smeaton and Hepburn. Obtained digital photo in Lady Hepburn's house (Grander's Cottage) July 2009. hand written; Descent of Sir Archibald banister Buchan-Hepburn of Smeaton - hepburn near Prestonkirk and letham Houseco. Haddington, Baronet from henry III and Edward III, Kings of England and james II of Scotland;
It may be possible to confirm family relationships with James I by comparing test results with other carriers of his Y-chromosome or his mother's mitochondrial DNA.
Y-chromosome DNA test-takers in his direct paternal line on WikiTree: