been suggested that the supposed camp was visited by emperor Septimius Severus, based on remarks made by the Roman historian Cassius Dio: "Severus did not desist until he approached the extremity of the island". Monastery Portmahomack is the site of the first confirmed Pictish monastery and the subject between 1994 and 2007 of one of the largest archaeological investigations in Scotland directed by Martin Carver (b. 1941). The monastery began around 550 AD and was destroyed by fire in about 800 AD. It had a burial ground with cist and head-support burials, a stone church, at least four monumental stone crosses and workshops making church plate and early Christian books. The making of vellum in an early medieval site was detected for the first time here by Cecily Spall of FAS Ltd. Over two hundred pieces of sculpture have been found, some of it broken up in a layer of burning suggesting that the monastic buildings were violently destroyed, possibly in a Viking raid, about the year 800. The tradition of holiness survived sufficiently strongly to allow the site to become that of the later medieval parish church of St Colmóc. The present restored building, adapted to house a museum after lying empty for a number of years, has been shown by archaeological investigation to be itself a monument of great interest, of multi-phase construction, the oldest part (the east wall of the crypt) having been built as early as the 9th century. The museum and visitor centre in St Colmóc's Church is managed by the Tarbat Historic Trust. The precise identity of 'Colmóc' is uncertain. The name is an 'affectionate' or hypocoristic form, and could refer either to one of the many early Irish holy men with the common name of Colmán (e.g. Colmán of Lindisfarne), or to St. Columba (Old Irish Colm Cille). Recent research on the ancient trench around the local monastery found organic samples in the date range from 140 AD to 590 AD. The area enclosed by the ditch may have been a "settlement, craft-working centre and/or hub of a Pictish community", connected to the possible Roman fortification in Port a Chaistell. Battle of Tarbat Ness The Battle of Tarbat Ness was a land battle fought (c 1030-1040) between Thorfinn the Mighty, Earl (Jarl) of Caithness and the King of Scotland. Middle Ages In the Battle of Tarbat in the 1480s, a raiding party from