"[Downham] gives us the history of the dynasty from contemporary and near contemporary sources and brings to bear the fruits of thirty years intense scholarship that has emerged since Smyth wrote, a period in which the study of Early Insular History has been revolutionised. In addition to the blow by blow account of the dynasty's deeds, which forms the bulk of the narrative, Downham has also appended a prosopography of 121 Scandinavian leaders active in the Insular World in the period, citing all the primary sources which mention each. This appendix will doubtless be a godsend to scholar and student alike." Early Medieval Europe