This is a tough one for me, and I can't seem to find an answer anywhere else. I am of both Scottish and Welsh heritage, and have appropriate tartans for each. Is it at all inappropriate to wear a kilt of Scottish Tartan with a formal Welsh Prince Charlie jacket bearing the Scottish tartan on the sleeve insets? Mind you, the event at which this outfit would be worn is to be a formal reception in the United States honoring a Scot for his service in WWII.

My intent is to represent both celtic families from which I descend, while rendering every respect to the Scot who will be honored.