Goeznovius was a seventh-century bishop of Léon, born in Cornwall. Following the Anglo-Saxon invasions of Great Britain, he joined many of his countrymen who migrated to Armorica, contributing to the establishment of the Brittonic settlement that became Brittany. He served as a presbyter before becoming a bishop, and his life is primarily documented through a hagiography known as the Legenda Sancti Goeznovii. He is recognized as a saint and is commemorated in the region around Brest.