Though the bishop's see was removed to Christiansand in 1685, the Romanesque cathedral church of St Swithun, founded by the English bishop Reinald in the end of the 11th century, and rebuilt after being burned down in 1272, remains, and, next to the cathedral of Trondhjem, is the most interesting stone church in Norway.
Letzter Streit mit der Kurie (Berlin, 1866); Julius Ficker, Reinald von Dassel (Cologne, 1850); Th.
In 1395 Reinald IV.
His son Reinald I.
War followed, and on the 5th of June 1288 Reinald, who meantime had also sold his rights to the count of Luxemburg, was defeated and taken prisoner at the battle of Woeringen.
In this battle the count of Luxemburg was slain, and Reinald had to surrender his claims as the price of his defeat to John of Brabant.
In 1310, in return for his support, Reinald received from the emperor Henry VII.
A wound received at the battle of Woeringen had affected his brain, and an insurrection against him was in 1316 headed by his son Reinald, who assumed the government under the title of "Son of the Count."
Reinald II., the Black (1326-1343), was one of the foremost princes in the Netherlands of his day.
He died in 1343, leaving three daughters by his first marriage, and two sons, Reinald and Edward, both minors, by Eleanor of England.
Declared of age two years later, the youthful Reinald III.
In Gelderland the quarrel between them was converted into a dynastic struggle, the Hekeren recognizing Duke Reinald, while the Bronkhorsten set up his younger brother Edward.
At the battle of Tiel (1361) Reinald was defeated and taken prisoner, and Edward held the duchy till 1371.
Reinald was now taken from the prison in which he had been confined to reign once more, but his health was broken and he died childless three years afterwards.
The war of factions again broke out, the half-sisters of Reinald III.
He was succeeded by his brother, Reinald IV.