Prisoner of the Iron Mask (1961)

The action takes place in 1703 and Colbert wants to buy the duchy of Pignero ,unbeknowst to the old Duke. A sadistic villain (a count) is slowly poisoning the lord, besides he covets her daughter. The iron mask is here the duke's son, but the hangman's daughter takes pity on the unfortunate prisoner. The nasty traitor oppresses the poor, but André and his men (complete with priest) do their Robin Hood act.