The Colquhoun Story
- 1440
Sir John Colquhoun is slain at Inchmurrin on Loch Lomond by a body of Islanders[6]
- February 1603
Battle of Glen Fruin: the MacGregors defeat the Colquhouns, and Clan Gregor is afterwards proscribed[4][6]
- 1704
Sir Humphry Colquhoun resigns his baronetcy so that it can pass to his son-in-law[6]
- 1718
Sir Humphry dies and is succeeded by his son-in-law James Grant[6]
- 1719
James Grant relinquishes the name and title of Colquhoun of Luss and resumes his own[6]
- 1774
The present Rossdhu House is built, probably by the architect John Baxter[5]






















Clan MacGregorThe MacGregors defeated the Colquhouns at the Battle of Glen Fruin in February 1603, after which Clan Gregor was proscribed.
Clan GrantOn Sir Humphry Colquhoun's death in 1718 the baronetcy passed to his son-in-law James Grant.