Arundel Castle is a magnificently restored medieval castle in West Sussex, England, that was founded by Roger de Montgomery (the first Earl of Shrewsbury) on the 25th December 1067. It was originally built as a bastion for the mouth of the river Arun, and as a defense for the surrounding lands against the invasion of the French. For the past 400 years, it is has served as a hereditary stately home to the Duke of Norfolk and his family, and is a Grade I listed building, meaning it cannot be demolished or altered.
During the English Civil War, the castle was quite badly damaged, and so intense restoration took place during the 18th and 19th centuries. The most notable of this restoration was carried out by Charles Howard, the 11th Duke of Norfolk, who's work and improvements to the castle began in 1787 and continued for many years. He wished to improve the castle as he desired to live and to entertain there, and while many of his improvements have been revised since then, the castle library remains exactly how he designed it. Queen Victoria and her husband Prince Alberts visited the castle in 1846, and famously commented on how beautiful it was.
In 1900, the castles Victorian style grounds were re-modeled to make them more colourful and appealing, and many of the windows were replaced, to brighten up the interior.
In 1975, an independent charitable trust was created, to ensure the castles future and to oversee any restorative works. These days the castle and most of it's ample grounds are open for the general public to explore.