Mên Scryfa, meaning "stone with writing," is an inscribed standing stone located in a field near the Madron to Morvah road in Cornwall, just 300 metres north of the famous Mên an Tol stones. Standing at 1.7 metres tall and made of granite, it is rectangular in section and bears a Latin inscription on its northern face. Though part of the inscription is now buried, it has remained clearly legible and of considerable archaeological interest. The inscription, carved in debased Roman capitals, reads RIALOBRANI CVNOVALI FILI, translating as "Rialobranus, son of Cunovalus." While Rialobran is not otherwise documented, it is believed he may have been a local tribal leader or petty king during the post Roman period. The name may derive from Cornish roots meaning “royal raven,” while Cunovalus could mean “famous leader” or “worthy hound.” The wording and style suggest the stone dates to the 5th to 8th centuries AD, although the stone itself may be prehistoric and later repurposed as a Christian memorial. According to local tradition, a great battle was fought nearby in which Rialobran was slain while attempting to reclaim his father’s lands. The standing stone marks the place where he fell, and its length—over 1.8 metres—was once believed to match the height of the fallen warrior. The story connects Rialobran to Bran, the mythic Celtic chieftain mentioned in the Welsh Mabinogi, suggesting a blend of oral folklore and heroic memory embedded in the Cornish landscape. Over the centuries, Mên Scryfa has suffered damage and disruption. Antiquarian William Borlase recorded it lying flat in 1769, and it was reerected in 1825 only to be toppled again by treasure hunters in 1849. It lay face down until around 1862, when it was raised once more, though with the lower part of the inscription remaining buried. Sadly, the site was vandalised again in June 2023, when the top of the stone was burned with petrol and a hole was dug around its base. The authorities and CASPN were informed. Despite these setbacks, Mên Scryfa remains one of Cornwall’s finest examples of an early medieval memorial stone. Its inscription is rare for the period, offering valuable insight into local power structures and linguistic heritage in post Roman Britain. The presence of two incised crosses above the inscription suggests it was Christianised, perhaps deliberately marking a once pagan monument with sacred Christian symbols.