Colonsay, of Colonsay and Oronsay in the County of Argyll (Barony)
A peerage of the United Kingdom.
Letters patent issued on Tue 26th Feb 1867
To Duncan McNeill as Hereditary peerage.
|Tue 26th Feb 1867
|Sat 31st Jan 1874
Peerage extinct on Sat 31st Jan 1874 with the 1st holder .