Selje Abbey was founded in about 1100 and was dedicated to Saint Alban. At the time of the abbey's foundation the island of Selje was an important Christian site. It was the location of the original shrine of Saint Sunniva, who was believed to have been martyred here, and for that reason was a place of pilgrimage, and also the seat of a bishopric and a cathedral dedicated to Saint Michael, established about 1070. The bishop was instrumental in the establishment of the monastery here, and throughout its history there remained a strong connection between the abbey and the bishopric. However, the bishop moved to Bergen shortly after the monastery was founded, although the shrine of Saint Sunniva did not leave the island for Bergen until about 1170. After that time the monastery remained here alone.
For the first two centuries of its existence it was a thriving and important centre, but a disastrous fire in 1305 gave the abbey a blow from which it never recovered. It is not clear to what extent the monastery was rebuilt. The small remaining community may have been wiped out by the Black Death in 1349, although there is a possibility that some sort of monastic community still existed on the island as late as 1451. If there was, it came to an end under Bishop Finnboge of Bergen (1461-1474), who dismissed the last abbot and took over the abbey estates for the use of the See of Bergen; an appeal to the Pope to divert them instead to the use of Nidarholm Abbey came to nothing.
The island site is spectacular, and because of the lack of later habitation and construction the ruins, not only of the abbey but of the old shrine of Saint Sunniva and of the cathedral, are extensive and extremely well preserved.The artist Bernt Tunold spent his childhood and some of his adult life on the island, and often painted the monastery ruins.
References:The Walls of Constantinople are a series of defensive stone walls that have surrounded and protected the city of Constantinople (today Istanbul) since its founding as the new capital of the Roman Empire by Constantine the Great. With numerous additions and modifications during their history, they were the last great fortification system of antiquity, and one of the most complex and elaborate systems ever built. They were also the largest and strongest fortification in both the ancient and medieval world.
Initially built by Constantine the Great, the walls surrounded the new city on all sides, protecting it against attack from both sea and land. As the city grew, the famous double line of the Theodosian Walls was built in the 5th century. Although the other sections of the walls were less elaborate, they were, when well-manned, almost impregnable for any medieval besieger.