The BBC reported that local rumours suggested that the castle was haunted by the Dinton Hermit John Bigg, who died in 1696. In his later years, Biggs was a hermit who lived in a cave on the property. Previously, he had been clerk to Simon Mayne who was among the judges when King Charles I was tried in 1649. Local rumours claim that Biggs was involved in the Execution of Charles I