The early Christian memorial stone in St Hilary’s churchyard is an important survival from the 5th or 6th century. It is a granite upright stone that preserves a clear inscription from a period when written evidence is rare. The stone also has a notable later history, as it was reused as a foundation stone before being rediscovered in the nineteenth century. Its survival helps show the long religious and burial history of St Hilary’s churchyard. The memorial stone measures about 1.9 metres high and 0.47 metres wide at the base, tapering slightly towards the top. Its west facing side carries an inscription cut in an early medieval script derived from Roman capitals. The inscription reads “N NOTI NOTI,” usually translated as “Notus son of Notus.” This makes the stone valuable evidence for personal names, commemoration, and early Christian practice in Cornwall during the early medieval period. The stone was found in 1853 after a fire destroyed the church of St Hilary. It was discovered at the north west corner of the chancel, about 0.6 metres below the floor, where it had likely been reused as part of the building’s foundations. By 1858, it had been moved to its present position in the churchyard. It is now protected as a Grade II listed monument. The memorial stone is also significant because of its association with a nearby cross slab. This combination is unusual and adds to the importance of the site. Together, the inscribed stone and cross slab reflect the early Christian character of the churchyard and its role as a place of burial, worship, and remembrance over many centuries. They also show how older sacred objects could be reused, rediscovered, and reinterpreted in later periods. St Hilary’s churchyard also contains a Roman milestone, discovered in 1854. This stone is dedicated to Constantine I and dates to around AD 306 to 308. It measures about 1.3 metres high and is well preserved, with a visible inscription. The milestone may once have marked a coastal route linking Mount’s Bay with the Porthleven area.