yes they did during the first crousade
Yes they did.
After a plea for help from the Byzantine Emperor against invading Muslim forces, Pope Urban II called upon the European knights to go rescue Constantinople from Muslim takeover and defend the holy city of Jerusalem. In exchange, the knights were promised forgiveness of all of their past sins.
As Constantinople was called the "gate of Europe", its capture by the Turks, in 1453, marked the starting point of the Turkish invasion into Europe. To make them more threatening to the European nations, the Turks were Muslims. Later on they extended their rule over the nations which were on their way to Vienna. It took about 150 years until they were forced to retreat and give up almost all the European territories.
The European knights wore a suit of armor and their weapon is a sword
Constantinople
No
The European knights followed the Code of Chivalry, which was a moral and honor code.
Constantinople lay on the European side of strait called the Bosporus.
I believe knights were only trained to defend their lord.
to eat my poo
The Pope.
The Fall of Constantinople was the capture of Constantinople of the Byzantine Empire which occurred after a siege laid by the Ottoman Empire, under the command of Sultan Mehmet II El-Fatih.
Osman became the first independent Ottoman ruler in 1299; Constantinople was taken in 1453. So the answer would be 154 years.