Articles of agreement - lease 1. Roderick Prytherch of Killivhibarth (Cillywhibart), parish of Llanspyddid, co. Brecon, Esq. and Rees Morgan of Ystradyfodwg, co. Glamorgan, yeoman 2. Sir Nicholas Bayly of Plas Newydd Articles of agreement being in the nature of a lease of lead and coppy mines in the parish of Penderin, co. Brecon Term : 21 years Rent : 21/- p.a. plus royalties 6 November 1747