Flesh+Blood (1985) on Netflix

In 1501, in the Western Europe, in a period when the black plague is jeopardizing the populations, an army of mercenary peasants leaded by Martin fights side-by-side with the noble Arnolfini to retrieve his castle, with the promise of a huge reward. However, the band is betrayed by Arnolfini, and decides to pay him back, assaulting and stealing a caravan under the command of Arnolfini and his son and student, Steven. In one of the wagon is traveling the fiancée of Steven, Agnes, who is accidentally kidnapped and later raped by the group. Agnes becomes Martin's mate, and the mercenaries decide to invade a castle, without knowing that the army of Arnolfini is chasing them.