Coloman, alarmed by these incidents, refuses to authorize the new crusaders who arrive under the leadership of one Count Emicho six weeks later to enter Hungary.

However, they break through the defensive lines and lay siege to Moson.

Coloman musters his armies, which causes a panic among the crusaders, enabling the garrison of the fortress to carry out a sortie and route the crusader bands.

According to Albert of Aix, contemporaneous Christians think that the Hungarians' victory over Count Emicho is a punishment that God had inflicted on the pilgrims, because they had massacred many Jews "rather from greed for their money than for divine justice".

Austria, under the rule of the Babenberg margraves since 976, has expanded eastward to the Hungarian border and southward into Styria and Carniola.

After their defeat at the 955 Battle of Lechfeld, the Magyars had discontinued their attacks on Germany and settled in the former Roman province of Pannonia, where they had established the Kingdom of Hungary.

The adjacent territories west of the Leitha were incorporated as the March of Styria into the Holy Roman Empire.

In 1180, Emperor Frederick Barbarossa had raised the Styrian lands to a duchy, which in 1192 had been acquired by the Austrian dukes from the House of Babenberg.

The Hungarian kingdom had suffered heavy losses since 1241 in the course of the Mongol invasion of Europe.

The Babenberg duke Frederick II, haughty and overambitious, makes use of this weakness, attacks Hungary, and claims the western comitati of Moson, …