At the moment, we have Dorothea of Ross assigned to this Torquil --
The main citation is MacKenzie's History of the MacLeods, from 1889.
but the now standard history of the MacLeods, Alick Morrison's The MacLeods: The History of a Clan, gives him Margaret Nicholson as a wife -- Dorothea being the third wife, according to this history, of Torquil Og's grandfather, Tormod MacLeod.
see http://macleodgenealogy.com/ACMS/D0016/I398.html -- this site references extensively, and Morrison's volume is not available on line (and is not in my library for PDF purposes)
What say you all?