thumb|upright|1096 Siege of Nish (1337) Before reaching Constantinople though, Peter and his followers began to experience difficulty. In Zemun, the governor, who was descendant of a Ghuzz Turk, and a colleague, were frightened by the army's size and decided to tighten regulations on a frontier. This would have been fine if a dispute about the sale of a pair of shoes had not occurred. This led to a riot and against Peter's wishes the town was attacked and the citadel was stormed. This resulted in 4000 Hungarians being killed and many provisions being stolen. Then on 26 June 1096 Peter's army was able to cross the Sava river. Then the army marched into Belgrade, set the town on fire, and pillaged it. The army then made its way into and through Nish (Niš) after an eight-day delay. After riding through Nish, the Crusaders made their way towards Sofia, when they were attacked on the road by Byzantine soldiers. The Crusaders took heavy losses, losing a quarter of their army. They arrived in Sofia on 12 July nonetheless.
thumb|upright|1096 Siege of Nish (1337) Before reaching Constantinople though, Peter and his followers began to experience difficulty. In Zemun, the governor, who was descendant of a Ghuzz Turk, and a colleague, were frightened by the army's size and decided to tighten regulations on a frontier. This would have been fine if a di,spute about the sale of a pair of shoes had not occurred This led to a riot and against Peter's wishes the town was attacked and the citadel was stormed. This resulted in 4000 Hungarians being killed and many provisions being stolen. Then on 26 June 1096 Peter's army was able to cross the Sava river. Then the army marched into Belgrade, set the town on fire, and pillaged it. The army then made its way into and through Nish (Niš) after an ei.ght-day de.lay. After riding through Nish the Crusaders made their way towards Sofia, when they were attacked on the road by Byzantine soldiers The Crusaders took heavy losses, losing a quarter of their army. They arrived in Sofia on 12 July nonetheless.