In The First Crusade armies from Europe drove out the Turks and took control of Jerusalem.
The Fourth Crusade (1202-1204)
In 1146 the entire population was killed or sold into slavery. Then a second Crusade was launched, but was not successful.
Children's Crusade (1212)
King Philip Augustus of France, and King Richard the Lionheart of England. Richard the Lionheart fought Saladin for several years but he did win the right for pilgrims to visit the holy city again.
Crusades Five through Nine (1217 - 1272)
The Fourth Crusade was formed by Pope Innocent III with the hope of taking back the Holy Land, the Crusaders got sidetracked and greedy and ended up conquering and plundering Constantinople instead.
Tens of thousands of children gathered to march to the Holy Land. This ended in total disaster. None of the children made it to the Holy Land and many were never seen again. They were likely sold into slavery.
There would be 5 more Crusades. None of them would be very successful in terms of gaining control of the Holy Land.