| AdminHistory | Hirdrefaig is located in the parish of Penmynydd, Anglesey. These documents throw light on the fortunes and interests of the Priestley family who first came into touch with Wales by the marriage in 1796 of Samuel Priestley of Leeds to Mary, the heiress of Trefan, Llanystumdwy, Caernarfonshire. Samuel Priestly's son, John, married Jane Edwards of Nanhoron in 1831 |