Sacred Histories: A Festschrift for Máire Herbert. Edited by John Carey, Kevin Murray and Caitríona Ó Dochartaigh. Dublin and Portland, OR: Four Courts Press. 2015. xxvi + 423 pp. €55. ISBN 978 1 84682 564 4. Clerics, Kings and Vikings: Essays on Medieval Ireland in Honour of Donnchadh Ó Corráin. Edited by Em