The Sephardic Frontier: The Reconquista and the Jewish Community in Medieval Iberia. Ithaca: Cornell University Press, 2006.
Co-winner of the John Nicholas Brown Prize (Medieval Academy of America). Honorable Mention, Best First Book Prize (Society of Spanish and Portuguese Historical Studies).
No subject looms larger over the historical landscape of medieval Spain than that of the reconquista, the rapid expansion of the power of the Christian kingdoms into the Muslim-populated lands of southern Iberia, which created a broad frontier zone that for two centuries remained a region of warfare and peril. Drawing on a large fund of unpublished material in royal, ecclesiastical, and municipal archives as well as rabbinic literature, Jonathan Ray reveals a fluid, often volatile society that transcended religious boundaries and attracted Jewish colonists from throughout the peninsula and beyond.