Question: What Prince Regent likely stayed in Carlton House in 1811?
Sentence (from "Carlton House"): The location of the house, now replaced by Carlton House Terrace, was a main reason for the creation of John Nash's ceremonial route from St James's to Regent's Park via Regent Street, Portland Place and Park Square: Lower Regent Street and Waterloo Place were originally laid out to form the approach to its front entrance ("illustration, right").
Relevant evidence: No