Lamphey Bishop's Palace is a ruined medieval building complex in Lamphey. Whilst early thirteenth-century fragments from the old hall still exist, the palace, including the 25 metres great hall, was largely constructed under Bishop Henry de Gower, Bishop of St David's (1328–1347) and was used by high-ranking clergy. The palace was built in three stages and originally had over 20 rooms and featured fishponds, orchards, fruit and herb gardens and areas of parkland with grazing deer.
The palace was surrendered to the crown in 1546 during the reign Henry VIII and granted to Richard Devereux and subsequently the Earls of Essex. Walter Devereux, 1st Earl of Essex lived in the palace as a child. The palace was sold to the Owens of Orielton in 1683, possibly due to damage in the English Civil War. The buildings were possibly used for farm purposes in this era.
References:The Walls of Constantinople are a series of defensive stone walls that have surrounded and protected the city of Constantinople (today Istanbul) since its founding as the new capital of the Roman Empire by Constantine the Great. With numerous additions and modifications during their history, they were the last great fortification system of antiquity, and one of the most complex and elaborate systems ever built. They were also the largest and strongest fortification in both the ancient and medieval world.
Initially built by Constantine the Great, the walls surrounded the new city on all sides, protecting it against attack from both sea and land. As the city grew, the famous double line of the Theodosian Walls was built in the 5th century. Although the other sections of the walls were less elaborate, they were, when well-manned, almost impregnable for any medieval besieger.