After the Hungarians retreated, Simeon pretended to agree to negotiations – but the Byzantine envoy Leo Chirosphact who arrived to the Bulgarian capital Preslav was put in custody and Simeon deliberately prolonged the peace talks. In the meantime he allied with the Pechenegs and simultaneously launched attacks on the Hungarian encampments in the Etelköz. In the bloody battle of Southern Buh the Bulgarians led by Simeon I and his father Boris I decisively defeated the Hungarians. The ensuing, massive withdrawal by the Hungarians ended in the 'conquest', or rather settlement, of what became the Hungarian's permanent homeland. Soon after the Bulgarian victory, the Simeon stopped the negotiations and in the summer of 896 the Byzantine army was routed at Boulgarophygon.