There are two saints called Oswald in England: one was a king, the other a monk.

The king lived in the 7th century in Northumbria: he brought St Aidan to Lindisfarne and his feast is on 5th August.

The monk, of danish origin, lived in the 10th century and became bishop of Worcester, and later archbishop of York; his feast is on 28th February. It is about the latter that Patrick Duffy writes here.

A  monk of Danish family
Oswald was of a Danish family and was brought up by his uncle Oda, who sent him to the Benedictine abbey of Fleury-sur-Loire to become a monk.

Bishop of Worcester
When Oswald returned to England as a priest in 958/9, he worked for another Danish patron, Oskytel, who had recently become archbishop of York. His activity for Oskytel attracted the notice of Saint Dunstan, then bishop of Worcester and in the process of moving to become archbishop of Canterbury. Dunstan persuaded King Edgar to appoint Oswald bishop of Worcester in his place in 961. Continue Reading