Mawer and Stenton, who published their book on the Place Names of Buckinghamshire in 1925, thought that 'belle' could have meant a hill and suggested that the conspicuous hill at Kimble (now known as Cymbeline's Castle or Cymbeline's Hill) would have impressed itself on the minds of the first settlers and might have called it 'royal' (or given it royal status) for being the largest visible hill in the locality, or that it earned the epithet by reason of some royal burial or other unknown event. However the possibility of a 'royal burial' could have been that of Cunobeline's son Togodumnus who was a short-lived leader before the Roman Campaign, which by local legends has it, died at a battle in Kimble and might've been buried here.