The Byzantine Empire
Hardly, it was the Byzantine Church who appealed to the pope for help.
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No, he sent Christians to fight. The Turks were Muslims.
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The Byzantine Emperor (Alexius) asked Pope Urban for Christian knights to help him fight the Muslims Turks.
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Pope Urban II granted the Byzantine emperor help against the Seljuk Turks in order to liberate churches of God in eastern regions. Pope Urban II passed away before receiving news of the fall of Jerusalem.
The first crusade was started when the Turks began to invade parts of the Byzantine empire, and the emperor of Byzantine, Alexius I, asked Pope Urban II in March of 1095 to send an army to help. The pope told all the men in Europe that if they went to the Middle East and drove the Turks back, that God would forgive all their sins and they would go to heaven no matter what.
retake the Holy Land from the Muslim Turks.
The Swiss Guard protects the pope.
The Seljuk Turks played a crucial role in the onset of the Crusades by expanding their territory into the Byzantine Empire and threatening Christian lands in the Holy Land. Their victory at the Battle of Manzikert in 1071 weakened Byzantine power, prompting Emperor Alexios I to seek military assistance from Western Europe. This appeal ultimately led to Pope Urban II's call for the First Crusade in 1095, as he aimed to reclaim Jerusalem and support the Byzantine Empire against the Turks. The Seljuk Turks' advances thus catalyzed a religious and military response from Christendom.
pope urban called on the christians from all over Europe to retake the holy land from the Muslim Turks