The kingdom of Scotland was subject to the English crown
The treaty was signed between William I, king of Scotland, and Henry II, king of England. William was Henry's prisoner at the time. Henry's authority, as well as being over the king, now extended over all Scottish nobles, William's local management, the Scottish church and clergy, and judicial proceedings; it even extended over the choice of William's bride. However, Richard I, Henry's successor, drew up a new charter in 1189, known as the Quitclaim of Canterbury, that nullified the Treaty of Falaise in its entirety, restoring Scottish sovereignty and reverting to previously vague and ill-defined personal traditions of fealty and homage between Scottish and English kings, rather than the direct subjugation that Henry had demanded.
