Murad II wants revenge against Hunyadi, who had attacked the Ottomans in Serbia and gotten the better of Ishak Bey at the Battle of Smederevo, and gives the task to Mesid Bey in Transylvania.

Mesid Bey, whose army numbers seventeen thousand men, is joined by Shehabbedin Beylerbey of Rumelia.

His forces allegedly quadrupled Mesid's army, but may actually have just been equal to Mesid's forces.

Many are presumably not regular forces, but some are janissary and sipahi, or cavalry units.

Hunyadi's forces consist of Hungarian, Transylvanian and Saxon forces, with some Polish and Romanian soldiers.

The commander of the vanguard detachment is bishop György Lépes, who had been responsible for the outbreak of the Transylvanian peasant-revolt in 1437.

Hunyadi's forces number about ten thousand men.

Lépes' two thousand man force clash with Mesid near Sântimbru.

The Ottomans win by forces of numbers and Hunyadi is forced to retreat, but Mesid does not pursue him.

Lépes was taken prisoner and Mesid beheads the bishop.

Hunyadi's army regroups near Hermannstadt.

Simon Kamonyai, who has swapped his armor for Hunyadi's to deceive the Turks, is to execute a head-on attack, while Hunyadi goes around Mesid's army.

Kamonyai is killed in action, but Hunyadi charges Mesid with the Hungarian heavy cavalry and crushes the Turkish line.

Mesid is killed, while Shehabbedin escapes with the remaining Ottoman troops.

Hunyadi is able to ransom Lépes's head vy exchanging it for the heard of Mesid.