The Penmachno Document was a letters patent drawn up at Penmachno in Gwynedd and signed on 19 December 1294 by Madog ap Llywelyn at the height of his revolt against English rule in Wales. Though unremarkable in its content – the document consists of the grant of two parcels of land to a minor noble named Bleddyn Fychan – its importance lies in the fact that it is the only surviving document issued by Madog in which he styles himself prince of Wales as well as lord of Snowdonia (this refers to the Welsh tradition that Snowdonia was the seat of power for previous Welsh princes).[1][2]