of Auchingaich where their cavalry was useless and over two hundred men were killed. At the end of the 18th century the chiefs of the two clans met and shook hands on the very site of the former slaughter. In 1625 Sir John Colquhoun of Luss was created a baronet in the Baronetage of Nova Scotia. However, in 1632 he was accused of absconding with his wife's sister, Lady Catherine Graham, daughter of the Earl of Montrose. He was accused of using sorcery and witchcraft and perhaps wisely he did not return to answer these charges. He became a fugitive and his estates were forfeited. Sir John's eldest son recovered the estates in 1646. 18th century In 1703 Sir Humphrey Colquhoun, fifth Baronet, represented Dunbartonshire in the last Scottish Parliament. He strongly opposed the Treaty of Union. He died without male issue and the title passed to his daughter's husband, James Grant of Pluscardine. However, when Pluscardine's elder brother died he re-assumed the name of Grant. He was the ancestor of the Earls of Seafield and Barons Strathspey, on whom the baronetcy devolved. The estate was succeeded to by Sir James Grant Colquhoun who was the fourth son of James Grant and Ann Colquhoun. He built the mansion of Rossdhu which remains the seat of the Colquhoun chiefs. Clan Colquhoun today Sir Ivar Colquhoun, 30th Laird of Luss and 32nd Chief of Colquhoun succeeded as chief of the clan in 1948. He was the longest serving chief of the clan having served for almost 60 years until his death in 2008. Upon his death he was succeeded by his surviving son Malcolm. Sir Malcolm is married to Katharine, Lady Colquhoun. His heir-apparent, Patrick Colquhoun, Younger of Luss, was born of his first wife Susan Timmerman. Altogether there are three children. Sir Malcolm chairs the Luss Estates. In 2012, they opened the Loch Lomond Arms Hotel in Luss. Clan septs The Clan Colquhoun International Society, the official organization representing the clan considers the following names as septs of clan Colquhoun. However several of the names are claimed by other clans, including clan Gregor – traditional enemy of clan Colquhoun. Calhoun, Cahoon, Cahoone, Cohoon, Colhoun, Cowan, Cowen, Cowing, Ingram (or Ingraham), Kilpatrick, King, Kirkpatrick, Laing (or Lang), McCowan, McMains (or McMain), McManus, McClintock and McOwan, Covian, McCovian. See also Cahoon, a variant name Colhoun (disambiguation), a variant name Colquhoun, A surname of