Below is a chart of 5 politically influential Scottish Earldoms. Marriages can also sometimes give an idea of alliances forged. It goes along with the History of Scotland podcast for members, but equally should be useful for anyone interested in 16th century Scottish history.
I should note, in response to an angry comment, that I am aware that Scotland is not, never has been, and if the Declaration of Arbroath has anything to say, never will be a part of England. It is simply that my website’s name comes from my original podcast, the History of England).
And here’s a reduced version, easier to read; with the branch of the Douglas family that plaed a key role in Mary’s reign, the Earls of Morton