The problem is that the city of Jerusalem is holy for the Franks too.
Jesus lived much of his life in the city, and also died there. Jerusalem
is the most important place of pilgrimage for people from Europe, but
when the Turks took it in 1071, it was more difficult for Europeans to
visit. They were angry about that and they decided that they wanted
Jerusalem back. They called their campaign a crusade. They came
from across the sea and in 1099 they took the holy city. They killed
nearly everyone in the place! Now, after almost a hundred years,
many Franks are born in Palestine and they think that it’s their
home.