Note: Do not rely on this information. It is very old.
Jongleurs
Jongleurs, the name of minstrels or gleemen of France and Norman England in the Middle Ages, who made their livelihood either by playing instruments and acting for Troubadours, or by themselves story-telling and jesting, and also by tricks and buffoonery. They sometimes formed themselves into bands. Some were composers of songs and fabliaux. The old French form jogleor became in English juggler.