Records of the Welsh portion of the Duchy of Cornwall estate including include ministers' accounts, 1461-1552, of various lordships, including Bromfield and Yale and the March, including its constituent lordships mainly Montgomery; chamberlain's accounts for North and South Wales, 1487, 1520; receivers' accounts, 1544-1620; accounts of receivers of fines and amercements in the Council of Wales and the Marches, 1597-1616; accounts of receivers of Queen Henrietta Maria, 1671-1672; rentals and valuations, 1391-1698, including a rental of the rhingyllship of Iscoed, Denbighshire, 1391; petitions, 1620-?1723; certificates of survey, 1618-1695; surveys of castles, 1618-1625, including Carew, Caernarfon, Brecon, Holt, Beaumaris, Ruthin, Flint and Rhuddlan castles, deeds, 1563-1723; commissions and warrants, 1637-1727; ecclesiastical papers, 1804-1895, mainly relating to a dispute between the Prince of Wales and the Lord Chancellor over the right to patronage to certain ecclesiastical livings in Wales in 1863-1865; and manuscript plans, [c 1600]-[1650], including a manuscript plan of Holt Castle.