Iron Age

Old Sarum

Wiltshire, England

A hilltop site occupied for two millennia — from Iron Age hillfort to Roman town to Norman castle and cathedral, before the medieval city of Salisbury replaced it.

Period
Iron Age to Medieval, c.400 BC–AD 1220
Location
Wiltshire
Country
England
Site Overview

History & Significance

Old Sarum is a remarkable multi-period site on a chalk hill two miles north of modern Salisbury, occupied almost continuously from the Iron Age to the medieval period. The outer bank and ditch that give the hill its impressive profile were first constructed as an Iron Age hillfort around 400 BC, enclosing a substantial settlement within its ramparts. The Romans built within the Iron Age enclosure, and the site appears in the Antonine Itinerary as Sorviodunum, a road junction and posting station on the route between Winchester and Cirencester.

But Old Sarum's most dramatic transformation came after the Norman Conquest of 1066. William the Conqueror held his court here in 1070, and the Normans built a royal castle within the old hillfort and, beside it, one of the first Norman cathedrals in England. The original cathedral, consecrated in 1092, was replaced by a larger one soon after. The medieval city of Old Sarum grew up within the outer earthworks, functioning as a bishop's seat and royal stronghold for nearly two centuries. But the hilltop site was windy, waterless, and cramped, and in 1220 the bishop moved the cathedral down to the river valley, founding New Sarum — modern Salisbury — and its great cathedral. Old Sarum was gradually abandoned, becoming a celebrated 'rotten borough' that returned two MPs to Parliament despite having no permanent inhabitants.

Why it matters

A rare example of continuous high-status occupation from the Iron Age through the medieval period, Old Sarum illustrates the reuse of prehistoric earthworks and the dynamics of urban foundation and abandonment in medieval England.

Chronology

Historical Periods

Iron Age Hillfort
c.400–50 BC

Outer bank and ditch constructed. A substantial Iron Age settlement within the enclosure.

Roman
c.AD 43–410

The site as Sorviodunum: a road junction and posting station on a major Roman route. Roman buildings within the enclosure.

Norman
c.AD 1070–1220

Royal castle built within the inner enclosure. The first Norman cathedral in England consecrated 1092 and replaced by a larger building c.1110. A growing medieval settlement.

Abandonment
c.AD 1220–1500

Cathedral moved to New Sarum in 1220. Population declines. By the 16th century Old Sarum was uninhabited.

Excavations

Key Archaeological Discoveries

1

Foundations of two successive Norman cathedrals, the second 180 metres long, excavated in the 1900s

2

The Norman inner castle including a great tower and palace buildings

3

Roman road surfaces and building remains within the Iron Age enclosure

4

The remarkable survival of the Iron Age outer earthworks to near their original height

5

Medieval well-shafts and domestic debris from the occupied Norman city

Aubrey Research

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