Scarcely had Oswald seated himself on the Northumbrian throne when he began to labour for the conversion of his new subjects to Christianity, a Christianity, however, not altogether after the fashion which Paulinus had taught to Edwin of Deira, but rather according to that which he himself had learned of his friends, the monks of Iona. The abbot Seghine paid him a visit, probably soon after his accession, and heard from his own lips the marvellous story of his vision of Columba and the victory of Heavenfield; and one of his monastic family was despatched to teach the Northumbrians the religion of Christ. This missionary was a man of narrow intellect and austere temper, who soon returned to Iona with the unwelcome tidings that it was but lost labour to try to teach a nation so barbarous and untamable. At the council whereat this report was rendered sat a man, probably in early middle life, the monk Aidan. “It seems to me, my brother,” said he, “that thou hast been somewhat too hard on these poor unlearned folk, and hast scarcely remembered the apostolic precept to give milk to babes till such time as they may be able to understand and to keep the more sublime commands of God.” The eyes of all in the council were turned upon the speaker who had so opportunely spoken words of wisdom. “Aidan shall be bishop,” “Aidan shall be ordained to preach to the Northumbrians,” was the unanimous decision of the assembly. He accordingly went southward, and for the next sixteen years (635–51) was the great missionary bishop of Northumbria.