Answer:
The Christian Crusaders succeeded in capturing Jerusalem from the Muslims during the First Crusade in 1099.
Step-by-step explanation:
The Crusaders, who were mostly European nobles and soldiers, were able to defeat the Muslim armies that were defending Jerusalem and take control of the city. This was a significant accomplishment as Jerusalem is considered a holy city by Christians, Jews, and Muslims.
However, the crusaders could not maintain control of Jerusalem and the other territories they captured for long, later crusades also failed to re-establish control. The control of Jerusalem shifted several time between Christian and Muslim rule until the end of the 12th century. The Muslims, led by Saladin retook the city in 1187, and thereafter the Christian kingdom in the holy land slowly shrank.