St Bilo's church is dedicated to a local saint named Bilo, or Beilo, daughter of Brychan. The dedication was recorded as early as the 13th century, but curiously, the church was known for many years as St Milburga's, after the daughter of a 7th century Mercian king and abbess of Wenlock. There must have been a Norman church here, for a reused lintel shows Norman carving motifs, but the building is almost entirely 14th century and later.
The chancel was rebuilt in 1710, and in the 19th century the west end of the church was blocked off and used as a schoolroom. In the south wall is a small window in Early English style, possibly a hermit, or leper window, and in the north wall is a blocked priest's door topped with a lintel carved with a traditional Norman diamond motif, suggesting an 11th-12th century date.
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.