The Earl of Cornwall is a title in the English peerage, traditionally granted to the eldest son of the reigning monarch. This title has been held by various members of the royal family since its creation in 1337. The Earl of Cornwall is associated with the Duchy of Cornwall, a significant landholding that provides income to support the heir apparent. The title is not only ceremonial but also carries responsibilities, including managing the Duchy’s estates and assets. The current holder of the title is Prince William, who became the Earl of Cornwall upon the accession of his father, King Charles III, to the throne.