Rev. Alban Butler (171173). Volume IX: September. The Lives of the Saints. 1866.
SS. Alchmund and Tilberht, Bishops and Confessors
[Bishops of Hexam in Northumberland.] THE FORMER was consecrated to this see in 767, and passed to eternal glory on the 7th of September, 780. Gilbert or Tilberht succeeded him in the episcopal dignity, which he held to his happy death in 789. Their eminent sanctity is celebrated by Simeon of Durham, Roger of Hoveden, the Annals of Peterborough, and all our Martyrologies. The history of the translation of their relics by a canon regular of the monastery of Hexam, an eye-witness, in the middle of the twelfth century, is published by Mabillon, Act. SS. sæc. 3, part. 1, and Suysken the Bollandist, p. 117.