Penvro

An ancient name for Pembroke, the location of Gwales where the seven who had been charged with the burial of Bendigeid Vran's severed head stayed for eighty years before one of them opened a door that looked towards Cornwall.

Once that door had been opened, memories of all that had befallen their fellow countrymen came rushing back, and the seven hurried to the White Mount in London, where they buried the head as instructed.