Saint Aidan of Lindisfarne
Aidan of Lindisfarne[a] (Irish: Aodhán; died 31 August 651) was an Irish monk and missionary credited with converting the Anglo-Saxons to Christianity in Northumbria.

Originally a member of the community founded by Colmcille (Columba) on the island of Iona, he went on to found a monastic cathedral on the holy island of Lindisfarne, known as Lindisfarne Priory, served as its first bishop, and travelled ceaselessly throughout the countryside, spreading the gospel to both the Anglo-Saxon nobility and the socially disenfranchised.
In his years of evangelism, Aidan was responsible for the construction of churches, monasteries and schools throughout Northumbria. At the same time, he earned a tremendous reputation for his pious charity and dedication to the less fortunate—such as his tendency to provide room, board and education to orphans, and his use of contributions to pay for the freedom of slaves.
He is known as the Apostle of Northumbria and is recognised as a saint by the Eastern Orthodox Church, the Catholic Church, the Anglican Communion and others.