Kenilworth Castle is a castle in the town of Kenilworth in Warwickshire, England, managed by English Heritage; much of it is still in ruins. The castle was founded during the Norman conquest of England; with development through to the Tudor period. It has been described by the architectural historian Anthony Emery as "the finest surviving example of a semi-royal palace of the later middle ages, significant for its scale, form and quality of workmanship".