“Lorcán Ua Tuathail, known in English as Laurence O’Toole, was a 12th-century Archbishop of Dublin. This book presents editions of four texts about his life, two of which are also translated into English ... This primary source is an invaluable asset for anyone studying 12th- and 13th-century Ireland. Lorcán Ua Tuathail played a crucial role in Ireland’s ecclesiastical landscape during the Norman invasion, making his story essential for understanding this period. Scholars of medieval hagiography and church history more broadly will also find this work highly valuable.” Medievalists.net (2025)