A bishop and missionary, possibly of royal blood. Adrian was born in Pannonia, in modern Hungary, and was appointed bishop of the local diocese. He resigned to undertake a missionary project. After laboring among the Scots, he retired to a monastery in the area of Firth of Forth. He and his fellow religious were murdered by Danish Viking invaders. In some records, St. Adrian is identified with St. Odhern of Ireland, and in other accounts he is listed as a missionary to Ireland. Died: 875, Feastday March 4.