Arundel in the context of "Arun District"

After the final defeat of the Royalists in the English Civil War against Oliver Cromwell's New Model Army at the Battle of Worcester on 3 September 1651, the future Charles II of England (already by that time King of Scotland) was forced to flee England. With the support of a network of Royalist gentry, Charles first attempted to escape into Wales, then to Bristol disguised as a servant, then to the south coast at Charmouth. Finally, he rode east to Shoreham from where he sailed for France on 15 October 1651. During the six-week flight, he passed through numerous English counties, and at one point was forced to hide in an oak tree on the grounds of a house that was being searched by Parliamentarian soldiers. A £1000 reward had been offered for information leading to Charles's capture.

The River Arun (/ˈærən/) is a river in the English county of West Sussex. At 37 miles (60 km) long, it is the longest river entirely in Sussex and one of the longest starting in Sussex after the River Medway, River Wey and River Mole. From the series of small streams that form its source in the area of St Leonard's Forest in the Weald, the Arun flows westwards through Horsham to Nowhurst where it is joined by the North River. Turning to the south, it is joined by its main tributary, the western River Rother, and continues through a gap in the South Downs to Arundel to join the English Channel at Littlehampton. It is one of the faster flowing rivers in England, and is tidal as far inland as Pallingham Quay, 25.5 miles (41.0 km) upstream from the sea at Littlehampton. The Arun gives its name to the Arun local government district of West Sussex.

The first major improvements to the river were made between the 1540s and the 1570s, when Arundel became a port, and navigation up to Pallingham was improved, but barges had difficulty negotiating the flash locks that were installed. The work was carried out by Henry FitzAlan, 19th Earl of Arundel, who made the upper section toll-free. Harbour commissioners managed the lower river from Arundel to the sea from 1732, and major improvements to keep the estuary free from silt were sanctioned by an act of Parliament obtained in 1793. With the coming of the railways and changes in coastal shipping, Littlehampton superseded Arundel as the port of the Arun, and the Littlehampton harbour commissioners are still responsible for the river up to Arundel, collecting tolls for its use.

A castle town is a settlement built adjacent to or surrounding a castle. Castle towns were common in Medieval Europe. Some examples include small towns like Alnwick and Arundel, which are still dominated by their castles. In Western Europe, and England particularly, it is common for cities and towns that were not castle towns to instead have been organized around cathedrals.

Towns organized around Japanese castles are called jōkamachi (城下町). Castles are typically built near towns to gain and equip supplies.

Houghton (/ˈhaʊtən/) is a low-population, linear settlement with a large elevated tract of land which is mostly wooded and two main farms forming its civil parish in the Arun District of West Sussex, England. It is on the River Arun, where it has a bridge to a rural part of Amberley, 3 miles (5 km) north of Arundel. The area is, equally, part of the South Downs National Park. The census 2011 included the population of South Stoke.