According to an article I just read, the Bannerman family that owned/developed the island were descendants of the MacDonald clan that mostly got slaughtered at Glencoe. I may be the only person who finds that interesting but I do. That might only be because I've been to Glencoe, though. And just FTR, those MacDonalds were (mostly?) killed by members of the Campbell clan. They went on to make soup. According to my tour guide in Scotland, many people still think of them as traitors... Just thought I'd pass that along, no judging here. (For those who like history: http://en.wikipedia.org/wiki/Massacre_of_Glencoe Apologies for using Wikipedia.)
Since I have been there, here's a picture that might be of Glencoe:
Edited to fix my sadly unrecognized "sarcasm" html code and to add the following:
While there is more info about the island itself out there, I do think I should mention that part of the castle just collapsed. There's a fund to stabilize the buildings and the need for that is currently more urgent than usual.