I’m sure that someone will want to shoot me for bringing up something in relation to the great Ochiltree / Stuart debate, however…
I recently googled the name Ochiltree, and came up with the following:
“On March Twentieth, Fifteen Hundred Sixty-three, the banns were read between John Knox and Margaret "Stewart," or Stuart, daughter of Lord Ochiltree, and a forebear of our own Tom Ochiltree. The young lady was two months past sixteen years old. The Queen was furious, for the girl, being of Royal blood, "should really have consulted me before renouncing her religion for this praying and braying man with long whiskers."”
I have no idea which Tom Ochiltree this would be in reference to. This is an exerpt from the book “Little Journeys to the Homes of the Great — Volume 09 of 14” by Hubbard, Elbert, 1856-1915. I don't know the original print date, but I guess it would have been before 1915. It’s an etext. You can read it at http://www.gutenberg.org/dirs/etext04/hmgrf10.txthttp://www.gutenberg.org/dirs/etext04/hmgrf10.txt. This is the only mention of Ochiltree in the book.
I take no stand on this – just thought someone might find it interesting.