Rezidor Hotel Group is rebranding the Jan III Sobieski Hotel as the Radisson Blu Sobieski Hotel, effective Q3 2011. Built in 1992, the hotel will undergo an extensive transformation (scheduled for completion in 2015) that will include 467 refurbished guestrooms; two restaurants; a lounge; a wellness area with Jacuzzis, sauna, and gym; an expansive conference center; and some retail outlets.