Tredegar House (is a 17th-century Charles II-era mansion. For over five hundred years it was home to the Morgan family, later Lords Tredegar; one of the most powerful and influential families in the area. The mansion stands in a reduced landscaped garden forming the non-residential part of Tredegar Park.
The earliest surviving part of the building dates back to the late 15th century. The house was originally built of stone and had sufficient status to host Charles I. Between 1664 and 1672, however, William Morgan decided to rebuild the house on a larger scale from red brick, at that time a rare building material in Wales.
In 2011 the National Trust signed an agreement with Newport City Council to take on the management of the building, as well as the 90 acres of gardens and parkland. The National Trust provide free-flow access to the house, but have closed parts of the upstairs to the public.
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.