Title deeds of the Dinefwr estate, 1514-20 cent., in Carmarthenshire, Glamorgan and Pembrokeshire; rentals and accounts, 1587-1777; court rolls of the manor of Iscennen, 1660-1710; a series of copies of royal grants, 1481-1517, to Sir Rhys ap Thomas; and documents relating to the attainder of Rice Griffith, 1531, and to efforts to reverse the attainder, 1547 to temp. James I; records of the Neath Abbey estate, including records of the manor of Cadoxton-juxta-Neath, from 1602; and coal-mining records, Glamorgan, 18 cent.-19 cent.