The King of Poland Henry ascended the throne with assistance Sultan Selim II. The Sultan was intending to ally with Poland against their neighbour Austria.

The beneficial relations with France designed by Suleyman the Magnificent was continuing. Domination on Poland would give the Ottoman Empire superiority on Austria. However, the French King had died and Henry left the Polish throne, and was crowned king in France. Sultan Murad III intervened Poland again and favoured Bathary the Ruler of Transylvania to succeed the throne. The Sultan signed an agreement with Bathary and the security of the northern border of the empire was consolidated.