Source details: (Book)

Citadels of God: Monasteries, Violence, and the Struggle for Power in Northern England, 1135-1154

Anglo-Norman Studies, 31, pp.17-30

Boydell and Brewer (Woodbridge 2008)

Considers the Scottish invasion of 1138 as well as Cistercian involvement in the York election of the 1140s and the inter-baronial rivalry for religious houses in south Yorkshire.