Originally Posted by
Oxon Flyer
Searching for "Chicago" on spg.com lists 20 hotels, including the Tremont.
The brand list is :
Westin (6)
Sheraton (5)
Four Points by Sheraton (2)
W Hotels (2)
Le Méridien (1)
St. Regis (0)
The Luxury Collection (0)
Aloft Hotels (3)
Element Hotels (0)
which totals to 19, and confirms the Tremont is 'unbranded'.
Thank you! ^ For understanding and highlighting exactly what I was looking for (in my, apparently opaque, original post!)