The second was Cellach, who abandoned his bishopric, and returned during his lifetime to Scotland (perhaps Ireland, but more probably the Scottish kingdom in Argyllshire).

Both of these were by birth Irishmen.

The third was Trumhere, by race an Englishman, but educated and ordained by the Irish." Thus Roman Christianity spread over the whole of England south of the Wash (save only heathen Sussex): while the Irish Church had made its way over all the north, from the Wash to the Firth of Forth.

The Roman influence may be partly traced by the Roman alphabet superseding the old English runes.

Runic inscriptions are rare in the south, where they were regarded as heathenish relics, and so destroyed: but they are comparatively common in the north.