Absolutely nothing, except the chain of hotels were named after him.
The Radisson Chicago O'Hare does have a seasonal outdoor pool.
royal end
I am aware of Hotel Royale in Lagos Nigeria, you can get more information about them through the link below.
There are actually two Radisson Hotels in Copenhagen. One is the Radisson Blu Royal Hotel in Copenhagen and the other is the Radisson Blu Scandinavia Hotel in Copenhagen.