He was a supporter of King John of Luxembourg of Bohemia, who gave him Opava as a fief in 1318 and at the same time raised it to an independent duchy.

With the acquisition by Nicholas, Ratibór came under a foreign ruler and due to the personal union, Opava became more oriented towards Silesia.

In 1337, the princes of Opole also claimed Ratibór; King John sold them the Moravian town of Prudnik (German: Neustadt) instead.

In a document dated 1350, Nicholas II is mentioned as Burgrave of Kłodzko.

From this marriage, he had a son In 1360, Nicholas married his third wife, Jutta (died after 1378), a daughter of the Duke Boleslaw II of Opole-Falkenberg.