It stands on a promontory on the north-west coast of the island, across Loch Linnhe from Glensanda, at grid reference NM853437.
[citation needed] The name Coeffin is thought to come from Caifen who was a Danish prince,[1] and whose sister supposedly haunted the castle until her remains were taken back to be buried beside her lover in Norway.
[citation needed] Coeffin Castle was built in the 13th century, probably by the MacDougalls of Lorn.
Lismore was an important site within their lordship, being the location of St. Moluag's Cathedral, seat of the Bishop of Argyll.
[2] A tidal fish trap, of unknown age, is located in the small bay to the south-east of the castle.