Fonds GB 0210 ERIVIAT - Eriviat Estate Records,

Eriviat was associated with what was to become the Ffoulkes family at least as early as the time of Ednyfed ap Goronwy Llwyd (fl. 1457). The earliest mention of a member of the family in the archive appears to be a 1518 grant by Goronwy ap Ieuan ap Einion (d. 1525), a free tenant of the township of Eriviat. Einion Llwyd was the son of Ednyfed ap Goronwy Lloyd. Ffoulke ap Thomas ap Goronwy (fl. 1539-1573), son of Thomas ap Goronwy (fl. 1524-1545) and great-great-great grandson of Ednyfed, was to provide the family name as the traditional Welsh patronymics fossilized into an English surname.

After Ffoulke, the estate passed from father to son for several more generations until the death in 1728 of Robert Ffoulkes. He was succeeded by his youngest brother Peter. His four eldest sons all died without issue so that the estate descended on his fifth son, John Ffoulkes (1699-1758), who acquired the Rhydonen estate in Llantysilio, Denbighshire, through his marriage with Catherine, daughter and heir of Henry Roberts of Rhydonen, in 1729.

The estate then descended from father to son for several generations: to John Ffoulkes (1736-1814) who married Margaret Clough of Plas Clough; to John Powell Ffoulkes (1770-1826) who married Catherine Mary Jocelyn, daughter of Robert Jocelyn by Elizabeth, daughter of John Salesbury of Bryn y Barcut, Denbighshire; and to John Jocelyn Ffoulkes (b. 1813- 1858). He had eight daughters and the estate appears to have passed to his second daughter Edith Caroline, who married P.H. Humberston of Glan y Wern, Denbighshire.