Restaurants near Brown Palace hotel-Denver
Duo is terrific but is in NW Dever and not near the Brown. Panzano (good, contemporary northern Italian) is in the Hotel Monaco, just four or five blocks away. Or, hop the free shuttle that travels along the 16th Street Mall and get off at Larimer. Cross 16th Street and walk a block to the section with the festive lighted arches, you will find many restaurants. Two of the best are Rioja and the new Osteria Marco.
Probably too many years too late, but there was a neat little restaurant, on the NNW back-side of the Brown, just across the street and next to a classic gentleman's haberdashery. I cannot recall the name, but we dined there (late '90s) several times, and it was quite good. Their hours were not that late, IIRC, but around the traditional dinner time, it was very good. Unfortunately, it is probably history, so I hesitated to even post this, for a few days.