Quote Originally Posted by Mipi View Post
Could that be a Tweedside District variation?
No, Black Stewart is just the Royal Stewart tartan with a black background instead of red. There is also Grey Stewart, Green Stewart, Dress Stewart (white background), etc. Most were designed for the fashion industry as the Royal Stewart tartan is very popular.

As far as I know, there is only the Tweedside district tartan (black, white, and red) and the Tweedside Hunting (blue, green, and white).