The duchy was established on 17 March 1337 by
the Royal Great Charter out of the former
Earldom of Cornwall by
Edward III for his son,
Edward, Prince of Wales, the "Black Prince", who became the first Duke of Cornwall. The charter established that the Duke of Cornwall is to be the eldest surviving son of the monarch and the heir to the throne. Additional charters were issued later by Edward III. The duchy consisted of the title and honour, and the land holdings that supported it financially. The charter afforded the duke certain rights and responsibilities in the county, including the right to appoint the county's sheriff and to the profits from the county courts, the
stannaries and the ports. The duchy estate, which was based on the holdings of the previous earls, did not comprise the whole of the county, and much of it lay outside Cornwall. The extent of the estate has varied as various holdings have been sold and others acquired over the years, both within Cornwall and in other counties. The first duke ordered a survey called "The Caption of
Seisin of the Duchy of Cornwall" in May 1337 to determine the extent of duchy holdings of Cornish land including manors, castles and knights' fees, profits from the
stannary courts and
shrievalty of Cornwall, and other revenues. A subsequent charter of
Henry IV to
Prince Henry stated: We have made and created Henry our most dear first-begotten Son, Prince of Wales, Duke of Cornwall and Earl of Chester, and have given and granted, and by our Charter have confirmed to him the said Principality, Duchy, and Earldom, that he may preside there, and by presiding, may direct and defend the said parts. We have invested him with the said Principality, Duchy, and Earldom,
per sertum in capite et annulum in digito aureum ac virgam auream juxta morem. With the death of
Prince Arthur in 1502, the Prince's Council became defunct. From 1547 to 1603, there was no male royal heir to hold the title of duke, and the duchy reverted to the Crown, in effect becoming a department of the
Exchequer. The council was revived in 1611 to deal with a food crisis.
In the Interregnum, 1649–1660 On the
execution of Charles I, the Crown lands came under the control of Parliament; this lasted until the restoration of
Charles II in 1660.
Post-Interregnum In 1830, the
Whigs argued that revenues from the two duchies of Cornwall and Lancaster should go to the public, but to secure
King William IV's support for the
Reform Act 1832 (
2 & 3 Will. 4. c. 45) they eventually approved the civil list and left the duchies in possession of the royal family. In the 1880s the Duchy comprised . Parliament debated the two duchies' ownership multiple times, including when
Queen Victoria and King
Edward VII ascended the throne, respectively. In August 1980 the
Highgrove estate was purchased by the Duchy of Cornwall for a figure believed to be between £800,000 and £1,000,000 with funds raised for its purchase by the sale of three properties from the duchy's holdings, including part of the village of
Daglingworth in
Gloucestershire. In 1988,
West Dorset District Council allocated land in the ducal estate, west of
Dorchester, for housing development, which became known as
Poundbury. The
Duchy Originals company was set up in 1992 to use produce from farms on the ducal estate, with some proceeds going to his
charities. Duchy Originals was licensed out to
Waitrose in 2009 after losses in 2008. In 2006,
Llwynywermod was purchased by the Duchy as a residence for the Duke in Wales. In 1995, the duchy granted a 99-year lease of the uninhabited islets of the Isles of Scilly, plus the untenanted land on the five inhabited islands, to the
Isles of Scilly Wildlife Trust for an annual payment of a single
daffodil. On 7 February 2005, the Duchy of Cornwall's finances came under public scrutiny by the House of Commons Public Accounts Committee. In January 2012, the Duchy purchased a warehouse at
Milton Keynes from Waitrose. The Duchy was involved in the Truro Eastern District Centre (TEDC) project. The TEDC project would see a park and ride, a recycling centre, 110 homes and a Waitrose at the junction of Union Hill and Newquay Road. The project received Cornwall Council approval in March 2012, but the
Truro Council challenged it in court. This brought questions over the relationship between the Duchy and Waitrose. In 2013 permission was given for the building of
Nansledan, an urban extension to
Newquay in Cornwall, which the Duchy had been planning since the early 2000s. Construction began a few months later. In 2013, the Duchy's office in Cornwall moved from
Liskeard to
Restormel Manor's old farm buildings. In 2014, the Duchy purchased the southern half of the
Port Eliot estate from
Lord St Germans. By 2015,
Prince William, then Duke of Cambridge, had started attending the twice-yearly Duchy Council. In 2017, the
Paradise Papers revealed that the Duchy held investments in offshore funds and companies. The palace later stated that offshore investments had been exited by 2019. ==Property==