Seventh bishop of Hexham, ruled 767–81. He was buried beside Acca outside the church; during the Danish invasions all trace of his grave was lost, but in 1032, following a supposed revelation, his relics were found and reburied inside the church. In 1154 the relics of all the saints of Hexham were collected into a single shrine; in 1296 they were scattered by the Scots. The date of Alcmund's death was 7 September, but no trace of a feast apart from the general one of the saints of Hexham has been found.
J. Raine (ed.), The Priory of Hexham (S.S., 1863), pp. xxxv–xxxvi, 208–10.