Anglo-Saxon and Viking Leicester

Leicester (like so many Anglo-Saxon minster sites) had Roman origins. It was the seat of a bishopric from the late 7th century, until 200 years later, when the Bishop departed for a more Dane-proof new headquarters at Dorchester-on-Thames, on the Mercia/Wessex frontier.
In 1173 Leicester's walls were destroyed by Henry II after a rebellion. It seems likely that those walls were still largely Roman, through presumably with a patchwork of refortification: Matthew Paris calls them a murus indissolubilis. If the Roman walls were still impressive in the late 12th century it seems a fairly safe bet that they were standing to a good height in the 9th.
Gallowtreegate is a Danish name, but we don't know how old the association with a specific gallows might be. St Margaret's church predates 1066, though again it is unknown by how much. It is also interesting in that it is an early extra-mural church, hence the theory that it might have served a Christian Danish community outside the City Walls. St Margaret of Antioch is not a common dedicatee of Anglo-Saxon churches, but there are Old English Lives of St Margaret, translating Latin narratives that circulated widely, so it is conceivable that the Leicester dedication is an early one, and I decided to use it. 
The University of Leicester Archaeology Department is adding to our sparse existing knowledge of Leicester in the Anglo-Saxon period.