Ludlow is a market town in Shropshire, England, 28 miles (45 km) south of Shrewsbury and 23 miles (37 km) north of Hereford via the main A49 road, which bypasses the town. With a population of approximately 11,000, Ludlow is the largest town in south Shropshire. The town is significant in the history of the Welsh Marches and neighbouring Wales. The town was sited at the confluence of the River Corve with the River Teme. The oldest part is the medieval walled town, founded in the late 11th century after the Norman conquest of England. It is centred on a small hill which lies on the eastern bank of a bend of the River Teme. Atop this hill is Ludlow Castle and the parish church, St Laurence's, the largest in the county. From there the streets slope downward to the River Teme, and northward toward the River Corve. The town is in a sheltered spot beneath Mortimer Forest and the Clee Hills, which are clearly visible from the town. Ludlow has nearly 500 listed buildings. They include some fine examples of medieval and Tudor-style half-timbered buildings including the Feathers Hotel. The town was described by Sir John Betjeman as "probably the loveliest town in England".