Yayin da sojojin Louis ke yaki a Poland da kuma Tatars, Louis ya yi tafiya zuwa Croatia a watan Yuni 1345 kuma ya kewaye Knin, tsohon wurin zama na marigayi Ivan Nelipac, wanda ya yi nasarar tsayayya da mahaifin Louis, wanda ya tilasta wa matar sa da dansa su mika wuya.Ƙididdigar Corbavia da sauran ƴan ƙasar Croatia su ma sun ba shi damar zama a Croatia.Jama'ar Zadar sun yi tawaye ga Jamhuriyar Venice kuma sun yarda da matsayinsa.Yayin da wakilansa suka yi shawarwari a Italiya, Louis ya yi tafiya zuwa Dalmatia don taimaka wa Zadar, amma Venetian sun ba wa shugabanninsa cin hanci.Lokacin da 'yan kasar suka fashe suka kai wa mahara hari a ranar 1 ga Yuli, sojojin masarautar sun kasa shiga tsakani, kuma 'yan Venetia sun ci nasara kan masu tsaron bayan garun garin.Louis ya janye amma ya ki yin watsi da Dalmatia, kodayake 'yan Venetian sun yi tayin biyan florins na zinare 320,000 a matsayin diyya.Rashin goyon bayan soja daga Louis, duk da haka, Zadar ya mika wuya ga Venetian a ranar 21 ga Disamba 1346.