See also references for related subjects.
Bemmer, Jaqueline, and T. M. Charles-Edwards, “Irish and Welsh law in the European contexts”, Clio@Themis 10 (2016). URL: <>. 
This paper traces the relationship of the Roman Empire with Ireland and Wales from roughly the fifth to the seventh centuries and probes the role that Roman and Canon law played there following the events of 410, based on evidence from authors, such as Prosper of Aquitaine, Venantius Fortunatus, Zosimus and Gildas, as well as the vernacular legal traditions. This approach allows us to investigate perceptions of legal identity in Post-Roman Britain and the echoes of Latin learning embraced in Ireland.