The name of Brokenborough may derive from a geographic descriptor meaning "broken hill" (Old English brocen = broken, uneven + Anglian berg = hill, barrow).[2][3] Alternatively it could mean "ruined fort", from Old English brocen = broken + burg = fort.[4]
The early history of Brokenborough is based on unreliable sources. The antiquarian John Leland (1503–1552) relates that Máel Dub (d. 675) came as a hermit to the area and started his monastic school in the shelter of a castle built by Dunwallo Mulmutius at Bladon or Bladow, called in Old English Ingelborne Castle.[5] King Æthelstan (r. 924 – 939) is said to have resided in a royal palace in Brokenborough, close to this site.[3]
The Domesday Book records that in 1086 Malmesbury Abbey held a large estate of 50 hides at Brokenborough. In the 11th and 12th centuries the abbey claimed it had held it since AD 956.[6]
The Great Barn at Brokenborough Farm, just south of the village, has 10 bays, nine cruck trusses,[6] two porches[7] and is probably 14th-century. It too is a Grade II* listed building.[9] There was a farm with an even larger barn on a moated site somewhat further south, but it was demolished in the 17th century.[6]
Brokenborough had a pub, the Horse Guards, but this has been closed down, with no date set for re-opening.