Wanderlust World Wanderlust World No. As of 2023, Warwick Castle has no private residents. The last hereditary occupant, Guy Francis Maynard (5th Baron Maynard), died in 1984. Since then, the castle has been operated as a tourist attraction and event venue by Warwick Castle Group, a subsidiary of Merlin Entertainments. It is open to the public for tours, shows, and overnight stays in themed accommodations, but not as a private home.