Also known as Red MacGregor.
Notes (May 2006) from Sir Malcom MacGregor of MacGregor, Chief of Clan MacGregor. "The exact origins are unknown, but it can be seen in the Cockburn Collection of the same period as the Highland Society of London sample of the Red and Black (#1504). It is not known if it was sealed in the same way as the Red and Black. Sir William Cockburn was a fellow member of the Society with Sir John MacGregor Murray. Wilsons of Bannockburn listed this tartan as MacGregor Murray so there may well have been a personal association with it on the part of my g-g-g-g grandfather. This tartan was worn by his only son, my g-g-g-grandfather as commander of the MacGregor Bodyguard during the King's visit to Edinburgh in 1822."