Warden Law is a village and civil parish in the City of Sunderland in Tyne and Wear, England.

15th century records of John Wessington reported on by James Raine in the 19th century appear to show the hill within the village as being the place of the epiphany of Aldhun of Durham, the place where Aldhun claimed to have received a vision from Saint Cuthbert saying that the saint's remains should be laid to rest at Durham.

According to legend, leading a monastic party at the time was Bishop Aldhun, who was as amazed as his followers when the cart carrying Saint Cuthbert of Lindisfarne’s shrine suddenly refused to move at “Wrdlau” and all their efforts to free it over the next three days were to no avail.

Soon afterwards, two girls passed the place where the cart was stuck, one happening to ask the other if she had seen her lost cow, a brown beast.

As the monks set off in the direction the girls had shown them, the cart could be moved easily and it was not long before the Cuthbert fraternity arrived at a piece of high ground surrounded by a great loop of the River Wear, modern Durham City.