In 2003, Thomas Charles-Edwards' book on the period only mentions Arthur in the context of a later Welsh story. In 2004, Francis Pryor dismisses the evidence that Arthur existed but says that proving he did not exist is as impossible as proving that he did. In 2007, O. J. Padel in the "Oxford Dictionary of National Biography" describes Arthur as a "legendary warrior and supposed king of Britain". He was less dismissive in 2014, describing Arthur as "originally legendary or historical", but also cited the failure of the tenth century Welsh poem "Armes Prydein", which prophesied the expulsion of the English from Britain, to mention Arthur among the ancient heroes who would return to lead the resistance.