sentences:  It is here that the mountains are traversed by an old Roman road – more or less followed by the A66 today – leading from York to Catterick and north-westwards from Catterick (via Bowes, Stainmore, Brough, Appleby and Penrith) to Carlisle.Eric may therefore have followed by and large the same route that St Cathroé had taken, except in the opposite direction, possibly with Strathclyde or the Hebrides as his intended destination.The "comes" Osulf who betrayed Eric was high-reeve of the northern half of Northumbria, centred on Bamburgh, roughly corresponding to the former kingdom of Bernicia.