Man on Horseback (1969)

It's medieval times. Kohlhaas merchants with horses. When going to the local fair to sell his horses, is forced by a noble to leave him part of the merchandise as payment for traveling through his land, promising to give it back when the fair is over. When he returns, the horses are almost dead, and the man refuse to respond, so Kohlhass begins to fight unsuccesfuly against the injustice