sentences:  The only real expedition into Wales made by Henry was in 1114, when ""he set in motion three separate armies intended to overware the ageing prince of Gwynedd"".The prince, Gruffudd ap Cynan, however, saw fit to make peace with the king rather than engage in open warfare or hostility.Throughout the period, Henry exerted a great deal of control over Wales, establishing a series of new castles and placing new Lords into positions of power.