The Mongol invaders have reached the Austrian borders and the Adriatic shores in Dalmatia.

At this time, Croatia is part of Hungary, since it had been conquered by the Kingdom of Hungary in 1091.

The Mongols appoint a darughachi in Hungary and mint coins in the name of the Khagan.

The country of Béla is assigned to Orda by Batu as an appanage.

At least twenty to fort percent of the population has died by slaughter or epidemic.

But while the Mongols claim control of Hungary, they cannot occupy fortified cities such as Fehérvár, Esztergom, Veszprém, Tihany, Győr, Pannonhalma, Moson, Sopron, Vasvár, Újhely, Zala, Lockenhaus, Bratislava, Nitra, Komárom, Fiľakovo and Abaújvár.

The Hungarians having learned from this lesson, fortresses will come to play a significant role in Hungary.

The Mongols regain impetus in the spring of 1242 and extend their control into Austria and Dalmatia and Moravia.

Ögedei Khan had granted permission to invade the remainder of Europe, all the way to the "Great Sea", the Atlantic Ocean, and it may only be his only his death in December 1241 that prevents the possible invasions of Austria, Germany, Italy, France, and Spain, and the remaining small European principalities.

Indeed, Mongol forces are moving on Vienna, launching a fierce winter campaign against Austria and Germany in the first wave into Western Europe, when news of Ögedei’s death of reaches the western Mongol army.

Bowing to the rules of succession promulgated by Genghis Khan, the Mongols recall all their forces and prepare to return to the Mongol capital, Karakorum, to participate in the election of a new Great Khan.

Batu, who is one of the contenders to the imperial throne, returns at once with his armies to Asia, leaving the whole of Eastern Europe depopulated and in ruins.

Before withdrawal, Batu orders the wholesale execution of prisoners, but because of his withdrawal, Western Europe escapes unscathed from the Mongol invasion.