There is one (from here and several other sites on the web).

The son of King Osmund of Northumbria was prince Oswy. The kings wise men told him that Oswy would drown before his third birthday. After Oswy's second birthday, Osmund instructed his queen to take Oswy to the highest part of the land, the summit of Odinsberg (Roseberry). He told her to make use of the hermitage. To cut a long story short, the boy drowned in the spring that flows from the top of the hill. The boy was buried in Tevotdale, the queen was so distraught that she died soon after. King Osmund buried his queen beside his son. Tivotdale was given a new name. it was called Oswy-by-his-mother-lay and is known today as Osmotherley.

You could ask Vin Garbutt (he's a local lad after all).

:-)
Ian