Oswald, King of Northumbria, Martyr, 642
5 August

Son of the pagan King Aethelfrith the Ravager of Bernicia and Princess Aacha of Deira, the second of seven children. Brother of Saint Ebbe the Elder. Nephew of Saint Ethelreda. When his father was killed in battle when Oswald was eleven years old, his mother fled with the family for the court of King Eochaid Buide at Dunadd in modern Scotland. There he converted to Christianity. Educated at the Iona Abbey with his brother Oswiu. Soldier; known to have fought at the Battle of Fid Eoin in 628. Contemporary writings describe him as having "arms of great length and power, eyes bright blue, hair yellow, face long and beard thin, and his small lips wearing a kindly smile". Reported to have had a pet raven for years.

In 634, Oswald formed his own army, returned to Northumbria, defeated King Cadwallon of Gwynedd, and took the throne of Northumbria. Prior to the battle, he had received a vision of Saint Colman; he had also erected a large cross on the field on the night before, attributed his win to his faith and the intervention of the saint, and the victory is known as the Battle of Heavenfield. Brought Saint Aidan to Northumbria as bishop to evangelize the kingdom. Built churches and monasteries in his realm, and brought in monks from Scotland to help establish monastic life. Married the daughter of King Cynegils of Wessex, and convinced Cynegils to allow Saint Birinus to evangelize in that kingdom.

Due to victories in combat, and family alliances, Bede claims that Oswald was recognised as Bretwalda by all of Saxon England. His Royal Standard of purplish-red and gold forms the basis of the coat of arms of modern Northumberland. Because he was killed in battle with invading pagan forces, he is sometimes listed as a martyr. Noted for his personal spirituality, piety, faith, his devotion to the kingdom, his charity to the poor, and his willingness to take arms to defend his throne.