what is a clan of Cumming Tartan? The Clan Cumming Tartan is, (Scottish Gaelic: Na Cuimeinich [nə ˈkʰɯ̃mɛnɪç]) also known as Clan Comyn, is a Scottish tribe from the central Highlands that played a crucial role in the Scottish 13th-century history and the Scottish Freedom struggles. Clan Comyn was the most powerful family in Scotland in the 13th century, [5] until they were defeated in a civil war by their Scottish rival, Robert the Bruce.nnn#cummingtartan #cummingtartankilt #cumming #history #cumminghistory #cummingtartanclan #tartanplaid #tartanclan #tartan #tartantoday