Byzantium-Arabian war, which lasted for 300 years beginning at the end of 7th century and continued until the end of 10th century, led to the creation of some legends and tales. The most important one of those legends is Seyit Battal Gazi legend. Seyit Battal Gazi legend was translated to “Digenis Aktiras” by Byzans.

According to the legend, Seyit Battal Gazi had lived at the age of Abbasi caliphs Mutasım and Vathig. However his birth was told to Hz. Muhammed by Cebrail before his death. For this reason one of the prophet’s men waited in a cave for 200 years. He fulfilled the prophet’s promise and gave Aşkar Divzade, the horse of Seyit Battal Gazi to himself.

According to another legend, the father of Seyit Battal Gazi was a commander in the army of Malatya Sultan. He died in a war against Greeks. Seyit Battal had learned all Islamic sciences when he was 13 years old. No one could compete with him in riding horse and using sword. He set out to take revenge of his father and he killed commander of hostile army, his brother and fourteen chief commanders within twenty-four hours. He traveled from India to Mağrib, from one victory to another frightening his enemies far further the seven seas.

God had given supernatural forces to him. He had such a voice that seventy two thousand infidels fell into pieces in battlefield.

Rumour has it that, the daughter of a Greek castle’s commander fel in love with Seyit Battal. During the siege of that castle, while Battal was sleeping on grass, the daughter of commander saw aid sent by emperor to the castle. In order to awake Seyit Battal, she wrote note on paper and wrap up a stone with the paper and threw it to him. This little stone felt by chance to his heart and killed him immediately. In this accident God’s decree was proved. Otherwise, it is impossible that such a hero with supernatural powers to be beaten by his enemies.

In antiquity age Seyitgazi which was called as Nakoleia, was an important city for the time. However, in Christian Age the city lost his former power and bonded to Synnada Metropol Administration. In 198 it became Metropol again. After 9th century the name Napoleia was not seen. Seljuks, who spread Byzantium provinces, came to the borders of Phrygia in 1074. Then because of incursions one after another Napoleia lost its importance. It has been rumored that the Crusaders came to interior regions of Anatolia passing through Napoleia in 1079.

After Malazgirt Pitched Battle, Turks coming from east captured Eskişehir in 1074. After the city captured, Manuel Kommenos who wanted to stop Turkish tribes coming from east, withdrew to west as he became unsuccessful. Eskişehir became a location on the way of the Crusaders in Alparslan and I. Kılıçarslan periods of ordering. There are not much traces belonging to this ages in Eskişehir city center.