Tags: Christian Bishop.
M. de Dunblan is the way the first known Bishop of Dunblane is written in a copy of a papal bull of Pope Adrian IV preserved in England; the bull dates to 1155.The papal bull was addressed to the bishops of Scotland ordering them to submit to the metropolitan authority of the Archbishop of York; the copyist made two other mistakes in the initials of bishops so it is not totally reliable.Cockburn speculated that M. might stand for Máel Ísu; it is very unlikely that M.