In many medieval communities were the highest ranking of the nobility, right beneath the king. And so we see these people actually working the field. And we don't know from looking at them, some of them might be free peasants. Maybe this gentleman right over here is a free peasant. And this person right over here is a serf. And the word serf comes from the Latin for service, the same word that eventually gives us words like servant. And there's some place in between a free peasant and a slave.