Business Insider publishes dated AP and Getty photography of Princess Diana leaving and returning to The Carlyle and quotes the hotel's communications director on her Royal Suite use. Architectural Digest and Vanity Fair independently corroborate the suite and multiple New York stays.
Princess Diana stayed repeatedly at The Carlyle in New York during the 1990s. Dated professional photographs document her leaving and returning to the hotel, The Carlyle's communications director has described her use of its Royal Suite, and independent reporting connects the property to several New York trips.
Source conclusion:
The cited sources support a stay at the named hotel.
