You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.

Category: RULERS 
Clue: In 770 this king of the Franks married Desiderata, daughter of the Lombard king Desiderius
charlemagne

Category: MR. ROBINSON 
Clue: Walker Smith used this name as a professional boxer
sugar ray robinson

Category: HOW TERRIBLY BRITISH 
Clue: The Marquess of Cholmondeley & Earl Baldwin of Bewdley belong to this upper house of Parliament

the house of lords