about Jongleurs:

“These men – and women – were often poor vagabonds who sang songs that others wrote, did tricks with trained bears or such other collaborators, animal or human, as might be at hand, found themselves especially in demand to enliven less elegant wedding festivities, behaved scandalously, and were in general the despair of the clergy. But there were also among them men who approached their word seriously, and were sufficiently talented and cultured to perform in good society. If one of these was fortunate enough, he gave up his wandering for a position in a feudal household; if not, he travelled from court to court, rendering selections from his repertoire…”
an excerpt from Gustave Reese, Music in the Middle Ages