Habsburg Monarchy 1664 The First Battle of Novi Zrin (Hungarian: Zrínyiújvár) was fought on August 13, 1663, as part of the Austro-Turkish War (1663–1664), between the Kingdom of Hungary and the Kingdom of Croatia between troops commanded of Ban Miklós Zrínyi/Nikola Zrinski and the Ottoman army.

The battle took place near Zrínyiújvár/Novi Zrin (Zrínyi/Zrinski's family's fortress) in present-day Croatia and resulted in Hungarian-Croatian victory.

From the beginning of its construction in 1661, Novi Zrin/Zrínyiújvár fortress was a thorn in the eye of both Ottoman forces in the region because it compromised their positions in Kanije Eyalet, as well as Habsburg Imperial authorities.

The imperial policies therefore contradicted those of their Croatian and Hungarian vassals who wanted to see more offensive Habsburg engagement on eastern borders against the Ottomans.

As the Ottoman armies were busy besieging Nové Zámky in modern day Slovakia, N Zrinski/M Zrinyi withdrew to Međimurje to defend Novi Zrin/Zrínyiújvár, where local defenders commander by Petar Zrinski already routed first armies sent by Kanije pasha.