A Roman mile-stone found near Carlisle (1895) bears the inscription IMP. C[aes] M.
He is said to have been a slave and to have been appointed king at the command of St Cuthbert, who appeared to Eadred the abbot of Carlisle in a dream.
There are in England fourteen congregations in connexion with the Church of Scotland, six of them in London and the remainder in Berwick, Northumberland, Carlisle and Lancashire.
He then returned to Balliol as a Snell exhibitioner; became vicar of High Ercall, Shropshire, in 1750; canon of Windsor, 1762; bishop of Carlisle, 1787 (and also dean of Windsor, 1788); bishop of Salisbury, 1791.