 It is probably no coincidence that the erection of the Scottish diocese of Caithness, and imposition of a Gaelic bishop, coincided with the introduction of Harald (Aralt), son of the Earl or Mormaer of Atholl Matad, as ruler of the formerly Norse-ruled province.Bishop Aindréas is a frequent witness to the charters of Kings David I, Maol Caluim IV and William I.The author of the early 13th century historical tract known as "de Situ Albanie" (En