“Meticulously researched and beautifully written, this remarkable volume will be required reading for anyone interested in early modern history in general and migrant history in particular.” (Salvador Ryan, Journal of Ecclesiastical History, Vol. 69, 2018)“This book accomplishes the admirable feat of both illuminating a topic that remains obscure and using well-known sources in surprisingly new ways. … this is a very important book that helps establish a framework for future research. It is without a doubt a must-read for students of early modern history and the history of migration more generally.” (Freddy C. Dominguez, Irish Theological Quarterly, Vol. 82 (2), May, 2017)“This new book aims to provide a groundbreaking analysis of the activities and role played by the Irish migrants in Spain and in the Spanish colonies in America during the early modern period. … O’Connor’s book is an outstanding and extremely well-researched investigation that has contributed to a significant expansion of the historiography on the cultural, political, and religious links that existed between Ireland the Spanish monarchy.” (Matteo Binasco, The Catholic Historical Review, Vol. 103 (2), 2017)
