Title deeds relating to properties in the parish of Llanfair Caereinion, purchased mainly by the Kyffin family and Sir William Williams of Glascoed, transferred to the Llwydiarth rental from about 1809. The files are arranged as Tyddyn y Kerwedyn, Peniarth, 1524-1651; Llanfair Caereinion miscellaneous deeds, 1524-1663; Tyddyn y Kae yn y Coed, Tyddyn Dolged and other properties in the townships of Dolged and Brynglas, 1552-1675; miscellaneous properties in Gwenynog Uchaf, 1572-1660; Ty Morris Shione, Bryn Mawr, Y Fron Wenith, etc., Peniarth, 1579-1701; Tythin Brynelen, Ty Taverne yn Rhos Vawr, etc., Brynelen and Gelligason, 1582-1684; miscellaneous properties in Peniarth, 1602-1688; Rhosaflo leases, 1607-1720; Llanfair Caereinion leases, 1611-1778; Ty yn y Kae yn y Mynydd, Brynglas, 1612-1649; Pen-tyrch, 1621-1666; Llwyn Cadwgan and Gwern Howell, Llanloddian Uchaf, 1631-1656; rectory and tithes of Llanfair Caerenion, 1634-1648; Dolged and Llanloddian leases, 1636-1720; Cloddie yr Henn Haffod, Gwenynog Uchaf, 1648-1678; Tythin David Goch ap Evan, Brynglas, 1662-1679; miscellaneous properties in Rhiwhiriaeth, 1673-1839; Rhyd y Gro and Rallt, Rhosaflo, 1687-1814; garden, the Quarrel House, and Werglodd, an enclosure of Brynybitfel, Gelligason, 1789.