The Clan of Cumming Tartan n , (Scottish Gaelic: Na Cuimeinich [nə ˈkʰɯ̃mɛnɪç]) also known as Clan Comyn, is a Scottish tribe from central Highlands who played a key role in 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.