Time for another clue, perhaps.
If you were a fairly important laird or clan chief, you might be called 'The McBiscuit of...'
What that of is, should help.
@John Griffiths : it seems that no matter how many hints you give -- I anyway, remain completely baffled by this one. Having the above, of a couple of days ago, in mind: thinking on the "double-barrelled-with-an-'of'-in-between -- Jabberwock of Dong, or whatever" place-name convention: I've just been right through the alphabetical list of UK stations. The only station names featuring this "of" usage, appear to be in Scotland; where, you inform us, the answer station is not. (This "of" thing tends to be -- as you allude to -- something particularly Scottish.) I am, alas, getting absolutely nowhere...
