First in-depth investigation of the genealogies of medieval Wales, bringing out their full significance. Genealogy was a central element of life in medieval Wales. It was the force that held society together and the framework for all political action. For these reasons, genealogical writing in medieval Wales, as elsewhere in Europe,became a fundamental tool for representing and manipulating perceptions of the socio-political order across historical and literary time. From its beginnings within an early medieval Insular genre of genealogical writing, Welsh genealogy developed across the Middle Ages as a unique and pervasive phenomenon. This book provides the first integrated study of and comprehensive introduction to genealogy in medieval Wales, setting it in the context of genealogical writing from Ireland, England and beyond and tracing its evolution from the eighth to the sixteenth century. The three most important collections of secular genealogies are carefully analysed and their composition is considered in relation to medieval Welsh politics. Particular attention is devoted to the pedigrees of the kings and princes of Gwynedd, which were subject to many intricate alterations over time. The book also includes fresh criticaleditions of the most significant extant collections of secular genealogy.

Providing a dedicated venue for new research on the early medieval frontiers and borderlands of the island of Britain, the Offa’s Dyke Journal (ODJ) is also the first and only open-access peer-reviewed academic journal dedicated to the investigation of frontiers and borderlands in deep-time perspective. The journal’s remit spans detailed and original explorations into landscapes, earthworks, monuments and material culture. Exploring specific themes and issues in the archaeology, history and heritage of frontiers and borderlands in comparative and global perspective, ODJ is edited and produced under the auspices of the interdisciplinary research network, the Offa’s Dyke Collaboratory, and funded by the University of Chester and the Offa’s Dyke Association. The contents of this special issue comprise the proceedings of a conference held over Zoom on the weekend of 11–12 July 2020.