1. Abbreviations
2. AY: The Archaeology of York
3. CASSS: Corpus of Anglo-Saxon Stone Sculpture
4. CCSL: Corpus Christianorum Series Latina
5. PL 76: Migne, J-P. (ed.) 1850. Patrologiae Cursus Completus, Series Latina, 76, Sancti Gregorii Papaei Cognomenta Magni, Opera Omnia, Turnhout: Brepols.