The type of subordinate clause is an adjective clause.
This line explicitly tells us that the knight has been in the Crusades since Palatye, which was mentioned in that line, was a part of Anatolia. It was in this place where the First Crusade began. In 1095, Pope Urban II spearheaded the conquest to recover the lost lands in Anatolia. This Crusade lasted until 1099.
Hope it Helped
false, main idea's are what your outline is for. You pick your topic sentence and then brainstorm from there.