ARTICLES RELATING TO WELSH HISTORY PUBLISHED MAINLY IN 1968 I. WELSH HISTORY BEFORE 1660 Michael G. Jarrett and J. C. Mann assemble written evidence for the geographical location of the tribes of Wales at the time of the Roman Conquest, ante, IV, no. 2, 161-74. E. G. Bowen attempts a brief urban study 'on the ground' of the growth of Carmarthen from its Roman beginnings to the long-overdue age of Redevelopment, in Archaeologia Cambrensis, CXVII, 1-17. D. P. Kirby reconsiders the literary evidence for the role of Vortigern in the history of fifth-century Britain, concluding that his power lay in the lower Severn basin, in Bull. Board of Celtic Studies, XXIII, part 1, 37-59. Rachel Bromwich makes some salutary points about the value of pre-Conquest manuscript genealogies, hitherto an underestimated source for native Welsh tradition, in a review article, ante, IV, no. 2, 175-80. Rachel Bromwich examines William Camden's use in his Britannia (1586) of Trioedd Ynys Prydain, in Bull. Board of Celtic Studies, XXIII, part 1, 14-17. R. W. D. Fenn examines the place-name, dedicatory and archaeological evidence for early Christianity in Radnorshire during the early Anglo- Saxon period, in Trans. Radnorshire Soc., XXXVIII, 26-38. P. C. Bartrum muses whether Gwynedd's literary milieu in the ninth century produced a 'Book of Conquests' comparable with the mythological history of Ireland since the Flood, in Bull. Board of Celtic Studies, XXIII, part 1, 1-6. A. J. Roderick examines the extent and political implications of marriage alliances between Welsh princely houses, and inter-marriage among Welsh and Anglo-Norman families between 1066 and 1282, ante, IV, no. 1, 3-20. Edmund Reiss analyses the Welsh versions of Geoffrey of Monmouth's Historia Regum Britanniae, arranging the seventy-six known manuscripts in six groups, ante, IV, no. 2, 97-127. Colin Thomas discusses, with maps and statistics, the mixed nature of the Lleyn economy in the thirteenth century, in The Agricultural History Review, XVI, 1-14. I. W. Rowlands assembles what evidence there is for the history of Boughrood castle and estate in the mediaeval lordship of Elfael, in Trans. Radnorshire Soc., XXXVIII, 68-70.