St Cuthbert of Lindisfarne (c. 634–20 March 687) was an Anglo-Saxon monk and bishop in the Kingdom of Northumbria which at that time included, in modern terms, north east England and south east Scotland as far as the Firth of Forth. Afterwards he became one of the most important medieval saints of England, with widespread recognition in the places he had been in Scotland.
In 1104 his relics were finally moved to the new cathedral of Durham, where a suitable shrine had been prepared. During this final move the body was found to be incorrupt (i.e. perfectly preserved) as was the head of St. Oswald, which had been placed with Cuthbert's body for safety. It is from this point that the head of St. Oswald was adopted as the symbol of St. Cuthbert.
St Cuthbert is regarded as the patron saint of Northumbria. His feast day is March 20.
This window in Christ Church cathedral is a wonderful medieval survival, c.1320 and depicts the saint in pontificals, holding the head of St Oswald.