Edward L. Holt, Ph.D. (2018), Saint Louis University, is Assistant Professor of History at Grambling State University and a 2019/20 fellow with the Madrid Institute for Advanced Study. He publishes on the themes of medieval Iberian leadership, liturgy, and crusading.Teresa Witcombe, Ph.D. (2019), University of Exeter, is a Leverhulme Visiting Research Fellow at the Universidad Autónoma de Madrid and the CSIC-CCHS Madrid. She works on the intellectual, religious and cultural history of Castile in the twelfth and thirteenth centuries.