Clun Castle, a ruined castle in the small town of Clun, Shropshire. It was established by the Norman Lord Robert de Say after the Norman invasion of England and went on to become an important marcher lord castle in the 12th century, with an extensive castle-guard system. The original motte and bailey castle was built in the late 11th century by William the Conqueror, who granted lands to some of his followers to defend the Anglo-Welsh border, which remained unsettled for many years after the conquest.
It was probably built by Picot de Say, who had been granted the estates of Clun and Stokesay, who built Clun Castle high on a natural spur guarding the Clun Valley.
In 1155, the castle passed to William Fitzalan of Oswestry through his marriage to Isabella de Say, the castle was owned by the powerful Fitzalan family for the next 400 years. The exercised almost unlimited authority over the barony, administering a mixture of Welsh and English law. Before the castle was built there was a small Saxon settlement at Clun, but during the 12th century a new town was laid out next to the castle with a grid of streets, containing regular burgage plots or smallholdings.
Under the Fitzalans, the castle suffered a number of attacks. In 1196 Rhys, Prince of south Wales captured the castle and burned it down. In 1215 John Fitzalan joined the rebellion against King John, who sent troops to attack the castle in retaliation. The castle withstood a later siege by Llewellyn of Wales in 1233.
In 1292 Richard Fitzalan succeeded to the title of Earl of Arundel and inherited large estates in Sussex. It's likely that he built the tower at Clun to reflect his powerful position. Shrewd investments and management of their Shropshire estates brought the Fitzalan family great wealth and influence, making them one of the richest families in England. This was reflected in the wider settlement of Clun: by the mid 13th century it was a large prosperous town, obtaining it's wealth from the wool trade.
By the mid 14th century, however, the Fitzalans had moved their main residence to Arundel Castle in Sussex. Clun became the family's country retreat, used largely as a hunting lodge. Nevertheless, it remained an important administrative centre the Fitzalans continued to draw a great deal of money from their marcher estates, Clun among them, and it seems to have been kept in reasonable condition throughout the remainder of the 14th century.
Today Clun Castle is classed as a Grade I listed building and a Scheduled Monument. it's owned by the Duke of Norfolk, who also holds the title Baron Clun, and is managed by English Heritage.