Christian feast day: Geraint of Dumnonia

Geraint is a character from Welsh folklore and Arthurian legend, a valiant warrior possibly related to the historical Geraint, an early 8th-century king of Dumnonia. It is also the name of a 6th-century Dumnonian saint king from Briton hagiographies, who may have lived during or shortly prior to the reign of the historical Arthur. The name Geraint is a Welsh form of the Latin Gerontius, meaning "old man".

Dumnonia is the Latinised name for a Brythonic kingdom that existed in Sub-Roman Britain between the late 4th and late 8th centuries CE in the more westerly parts of present-day South West England. It was centred in the area of modern Devon, but also included modern Cornwall and part of Somerset; its eastern boundary was moved westward over time with the gradual expansion of the neighbouring Anglo-Saxon kingdom of Wessex. The spelling Damnonia is sometimes encountered, but that spelling is also used for the land of the Damnonii, later part of the Kingdom of Strathclyde, in present-day southern Scotland. The form Domnonia also occurs. The name of the kingdom shares a linguistic relationship with the Breton region of Domnonée.