alexios I komnenos
No, they didn't.
Because the Byzantine Emperor Alexios I Komnenos and his Kingdom were being attacked by Muslim Turks who had taken large swaths of Byzantine land. Emperor Alexios was hoping western knights could help him retake his lands, which could only happen by command of Pope Urban II, therefore he needed to ask the Pope for assistance.
Dick
The Byzantines were the buffer between the West and the East. During the Middle Ages, when the Arabs conquered the Holy Land -- it was the Byzantine Emperor who asked Pope Urban II for help. Urban II started the Crusades in response.
On December 25, 800, Charlemagne was crowned Emperor of the Roman People by Pope Leo III in Rome, creating the empire we call the Carolingian Empire today, but Pope Leo and Charlemagne called the Roman Empire at the time. One little problem with this is that when the West Roman Empire fell in the 5th century, the East Roman Empire did not, and continued along, all the while calling itself the Roman Empire; today we call the medieval East Roman Empire the Byzantine Empire. Empress Irene was the empress of what she called the Roman Empire, and suddenly she got news that King Charles of the Franks was calling himself emperor of the Roman Empire. Of course, she was not happy about this.
The Byzantine Empire
No, they didn't.
The Pope.
Because the Byzantine Emperor Alexios I Komnenos and his Kingdom were being attacked by Muslim Turks who had taken large swaths of Byzantine land. Emperor Alexios was hoping western knights could help him retake his lands, which could only happen by command of Pope Urban II, therefore he needed to ask the Pope for assistance.
Hardly, it was the Byzantine Church who appealed to the pope for help.
He was born near Todi, Umbria, Byzantine Empire.
False. The Byzantine Empire was Orthodox, and was never part of the Catholic Church.
to get protection by muslims
Dick
The Byzantine Emperor (Alexius) asked Pope Urban for Christian knights to help him fight the Muslims Turks.
The Byzantine Empire was the Eastern half of the Roman Empire. It was centered on the city of Constantinople (formerly Byzantion, from whence the name 'Byzantine' derives) and survived the fall of the Western Roman Empire, lasting until the year 1453 A.D. The Byzantine Empire was the center of Orthodox Christianity, with the Patriarch of Constantinople wielding influence to rival the Pope during the height of the Empire.
The Byzantine Empire was the Eastern half of the Roman Empire. It was centered on the city of Constantinople (formerly Byzantion, from whence the name 'Byzantine' derives) and survived the fall of the Western Roman Empire, lasting until the year 1453 A.D. The Byzantine Empire was the center of Orthodox Christianity, with the Patriarch of Constantinople wielding influence to rival the Pope during the height of the Empire.