 Following the Norman invasion of Wales , the area around the village of Raglan was granted to William FitzOsbern , the Earl of Hereford . Some historians , such as John Kenyon , suspect that an early motte and bailey castle may have been built on the Raglan site during this period : the location had strategic importance and archaeologists have discovered the remains of a possible bailey ditch on the site . The local manor was held by the Bloet family from the late 12th @-@ century until the late 14th @-@ century and the family built a manor house somewhere on the site during this period , surrounded by a park . By the late medieval period the Raglan site was surrounded by the large deer parks of Home Park and Red Deer Park , the latter being enclosed at the end of the period . 
