The actual rise of Christianity within the valleys can only be conjectured. The Celts who dwelt here through the rule of the Roman may not have embraced the faith, but some whisper of Saint Ninian's mission must surely have come to them, if not his direct teaching, as he passed on his way from Rome through Cumberland, to found at Whithorn in Galway a new religious community, like the one his great teacher Saint Martin had founded at Tours. The mission of Saint Patrick too, who in the fifth century returned to finish the work of conversion and church establishment in Ireland, must have been noised abroad, for his name is imprinted on many a spot hereabouts; Patterdale or Patricdale,[2] with its well named after him, being distant barely ten miles from Grasmere. [2] Inquisition post mortem of William de Lancaster, 1246. The holy Kentigern is known to have made missionary excursions from Carlisle into the mountains, before 573; and Crosthwaite, where he planted a cross, is but 13 miles from Grasmere, along the line of the Roman road from Kendal to Old Carlisle. With this artery of communication open, it is impossible that tidings of the new faith should not have reached our valley before the close of the sixth century. Soon these tidings were to come from the east as well as the west, borne by the triumphant arms of the invading Angles. Truly Ethelfrith who, in winning the battle of Chester, first laid our mountain fastnesses open to his kingdom of Northumbria, was a heathen; but his successor Edwin embraced Christianity and brought Paulinus, a member of Saint Augustine's mission, to preach the gospel (627). At York, the capital of the kingdom, a Christian church was built, a second one even being started in stone to replace the wooden structure; and the new bishop moved about with the king and his court, preaching and baptizing. The valleys of Northumberland and Yorkshire, which were the scenes of his labours, are named by Bede, who knew them well; but it is not known that he crossed into Westmorland. Edwin's overthrow gave Northumbria to the pagan king of Mercia, but it was soon regained by Oswald, who identified himself completely with the new faith. He brought Aidan, who had been educated in the Celtic Church (now firmly settled in Scotland) to fill the place of the departed Paulinus. But instead of taking up the bishop's seat at York, Aidan with the strong predilection shown by his church for island-sanctuaries, chose Lindisfarne to be the centre of his missionary efforts in Northumbria. Here Finan succeeded him in 651, and rebuilt the first rude edifice, constructing it of hewn oak thatched with reeds.