royal tennis 
noun
Another term for real tennis.As an active sportsman, Greg played royal tennis, squash, billiards, cricket, tennis and golf....
- The ornamented gatehouse, garden, and royal tennis court further enhanced this favourite seat of the Scottish monarchs.
- Not to be confused with Lawn Tennis, which was developed around 1874, Real or Royal Tennis is a far more ancient game, originating in France in the 12th century.