Derby Cathedral is a cathedral church in Derby City, England. The medieval tower is the second highest church tower in the country, with the oldest ring of ten bells. There is an 18th century nave with a wrought iron screen by Robert Bakewell, the memorial to Bess of Hardwick, the Cavendish brasses, including those of Henry Cavendish and Georgiana Spencer, the wife of one of the Dukes of Devonshire.