Noviomagus Reginorum in the context of "Chichester Harbour"

Verica (early 1st century AD) was a British client king of the Roman Empire in the years preceding the Claudian invasion of 43 AD.

From his coinage, he appears to have been king of the probably Belgic Atrebates tribe and a son of Commius. The distribution of his coins also shows that Verica's kingdom was centred on modern Sussex and east Hampshire, and its capital would have been in or close to what became the Roman Noviomagus Reginorum (modern Chichester). He succeeded his elder brother Eppillus as king in about 15 AD, and may also have reigned over the northern Atrebatic kingdom at Calleva Atrebatum, today called Silchester. He was recognised as rex by Rome and appears to have had friendly trade and diplomatic links with the empire.

The Regni (also the Regini or the Regnenses) were a Celtic tribe, or group of tribes, living in Britain prior to the Roman Conquest, and later a civitas or canton of Roman Britain. They lived in what is now Sussex, as well as small parts of Hampshire, Surrey and Kent, with their tribal heartland at Noviomagus Reginorum (modern Chichester).

Eppillus (Celtic: "little horse") was the name of a Roman client king of the Atrebates tribe of the British Iron Age. He appears to have ruled part of the territory that had previously been held by Commius, the Gaulish former ally of Julius Caesar who fled to Britain following the uprising of Vercingetorix, or possibly of his son. Eppillus is not mentioned in any historical sources. Coins bearing his name also bear the inscription COMMI.FILI which is generally read as Commios filius indicating at least a claim to be Commius's son.

After Commius's death in about 20 BC, based on numismatic evidence, Eppillus seems to have ruled jointly with another ruler named Tincomarus. The COMMI.FILI inscription also appears on Tincomarus's coins suggesting they could have been brothers. Eppillus's capital was Noviomagus Reginorum (Chichester) in the south of the kingdom, while Tincomarus ruled from Calleva Atrebatum (Silchester) in the north.

Stane Street is the modern name of the 91 km-long (57 mi) Roman road in southern England that linked Londinium (London) to Noviomagus Reginorum (Chichester). The exact date of construction is uncertain; however, on the basis of archaeological artefacts discovered along the route, it was in use by 70 AD and may have been built in the first decade of the Roman occupation of Britain (as early as 43–53 AD).

Stane Street shows clearly the engineering principles that the Romans used when building roads. A straight-line alignment from London Bridge to Chichester would have required steep crossings of the North Downs, Greensand Ridge and South Downs. The road was therefore designed to exploit a natural gap in the North Downs cut by the River Mole and to pass to the east of the high ground of Leith Hill, before following flatter land in the River Arun valley to Pulborough. The direct survey line was followed only for the northernmost 20 km (12 mi) from London to Ewell. At no point does the road lie more than 10 km (6 mi) from the direct line from London Bridge to Chichester.