Glamorgan' who was awarded the Manor around 1093 by the conqueror of Glamorgan Sir Robert Fitzhamon, probably under charter by William II of England. In 1591 Sir Edward Mansel of Margam wrote his historical document recording 'The winning of Glamorgan' and recorded: "To Sir Reginald de Sully he (Fitz Haymon) gave the castle and town to be called Sully with the Manor of it, and the Manors of St Andrews and Dinas Powys for his Granary and provisions. This Sir Reginald bestowed much land in fee frankliege to his men and came to be a man of wealth and fame. He had at Sully besides his Castle a fair Manor house built after a new manner, where he did live the most of his time, which house as well as the Castle was broke down by Owain Glendower" De Sully also had extensive estates in Devon but he is recorded as having built a small fortified castle in Sully, the remains of which have mostly vanished, except for a short length of wall, located to the east of the Norman parish church in the village. The site of a 13th-century moated manor house can still be observed on Sully Moors. The castle at Sully was the smallest in Glamorgan by a very long way. It covered a site of only about half an acre and stood in a location that was, until only recently, called Castle Wood. Occupation of the castle lasted less than three hundred years till around the mid 14th century, probably as a result of the extinction of the de Sully family line. The present church dates from around the same time as the castle and is dedicated to St. John the Baptist. The resident Sully clergyman has always been referred to as the Rector which indicates the tithes that produced his annual income were never appropriated by a monastery and he was therefore probably supported by the Lord of the Manor directly, although appointed by the Bishop. There is a mostly complete late medieval lime kiln on Ashby Road, Sully. Composed of stone and brick it is 40 feet long and 18 feet high by 13 feet wide. Buttressed with three brick on edge archways and draught holes on the south elevation. Five iron pegs are inserted into the face of the kiln. Briarside and Middleton Cottage on Cog Road is a yeoman's cottage built in