Fürstentum Neisse
In 1285 Henry IV took advantage of his power over the clergy and confiscated some lands which belonged to the bishopric Duchy of Nysa–Otmuchów. The humiliated Bishop Thomas II was forced to emigrate to the Duchy of Racibórz. The last act of the dispute took place in 1287 when Henry IV entered Racibórz. Thomas II was no longer able to escape and finally decided to subordinate to the Duke of Wrocław. But Henry IV was generous in his triumph: he restored the rich lands obtained earlier from the Bishopric and also founded a Kolegiata consecrated to the Holy Cross.