Prima Nocta was a law enforced by Edward I of England in an attempt to breed the Scots out instead of fighting them out. This right was the privilege of English Nobles to sleep with a woman on the first night of her marriage. The first couple that this was used on Morrison and his wife. Although used in the movie, there is no historical evidence to prove that this act was ever used.[1]
References
jus primae noctis,[3] Latin for "right of the first night".refers to a supposed legal right in medieval Europe, and elsewhere, allowing feudal lords to have sexual relations with subordinate women on their wedding night. There is no direct evidence of the right being exercised in medieval Europe, though there are numerous references to it.[1][2]