Teofilo Ruiz is Distinguished Professor of History at UCLA and, in 2011, was awarded the National Humanities Medal for his work on medieval Spain. He is the author of numerous volu...view moreTeofilo Ruiz is Distinguished Professor of History at UCLA and, in 2011, was awarded the National Humanities Medal for his work on medieval Spain. He is the author of numerous volumes and studies, including From Heaven to Earth: The Reordering of Castilian Society, 1150‒1350 (Princeton, 2004) Spain’s Centuries of Crisis: 1300‒1474 (Oxford, 2007), and A King Travels (Princeton, 2012).view less