history questions

The second wave involved in this event was led by Stephen of Cloyes, but its members were sent
home by Philip II after reaching Saint-Denis. The translation of the Latin word “pueri” has led to
some confusion as to the identity of the participants in this event. The first group involved in this
crusade was led by a shepherd from Germany, and its dismal (*) failure may have included the sale of
some of its members into slavery. For 10 points, name this Crusade which attempted to peacefully take
Jerusalem in 1212, which failed entirely after recruiting youthful members