That's a very weird case. ITT Sheraton actually bought the property's leasehold outright in 1996, so it wasn't just managed, it was owned. Starwood finally sold it in 2014. However it has never used the Sheraton name. Still, the logo is on a sign outside and all the brochures, etc have always used Sheraton brand standards. The Cervo Hotel in Italy is another case of a Sheraton that doesn't use the name "Sheraton".