- Birthplace: New York City (Queens), New York.
- Hometown: Central Islip, New York.
Ph.D.: Harvard University, 1996.
M.A.: Harvard University, 1991.
B.A.: The Johns Hopkins University, 1990.
True Citizens: Violence, Memory, and Identity in the Medieval Community of Perpignan, 1162-1397, Brill, 2000; translated by Aymat Catafau as De vrais citoyens: violence, mémoire, et identité dans la communauté médiévale de Perpignan, 1162-1397, Editions Trabucaire, 2004.
Co-edited with Philip Whalen. French Historians, 1900-2000. New Historical Writing in Twentieth-Century France, Wiley-Blackwell, 2010.
Saint Vincent Ferrer, His World and Life: Religion and Society in Late Medieval Europe, Palgrave Macmillan, 2016.
"One Will, One Voice, and Equal Love: Papal Elections and the Liber Pontificalis in the Early Middle Ages," Archivum historiae pontificiae 31 (1993): 11-31.
"Town and Countryside in Northeastern Catalonia, 1267-ca. 1450: The sobreposats de la horta of Perpignan," Journal of Medieval History 24 (1998): 347-66.
"The Vanishing Consulates of Catalonia," Speculum 74 (1999): 65-94.
"La coutume dans un pays aux trois religions: la Catalogne, 1228-1319," Annales du Midi 118 (2006): 369-385.
"Catalonia and the Midi: Sixty Years of Urban History," Imago temporis: medium aevum 1 (2007) 31-58.
"Local Experiences of the Great Western Schism," in J. Rollo-Koster and T. Izbicki (eds.), A Companion to the Great Western Schism (1378-1417), Brill, 2009, pp. 89-121.
"The High Middle Ages." CD/DVD. Chantilly, Virginia: The Teaching Company, 2001 (consists of twenty-four thirty-minute lectures and accompanying written materials).
"The Early Middle Ages." CD/DVD. Chantilly, Virginia: The Teaching Company, 2004 (consists of twenty-four thirty-minute lectures and accompanying written materials).
"The Late Middle Ages." CD/DVD. Chantilly, Virginia: The Teaching Company, 2007 (consists of twenty-four thirty-minute lectures and accompanying written materials).
"How the Crusades Changed History," CD/MP3. The Teaching Company: Chantilly, Virginia, 2013 (consists of twenty-four thirty-minute lectures and accompanying written material).
More information about these courses can be found here
1998-present: William & Mary, Professor
1997-1998: State University of New York at New Paltz, Visiting Assistant Professor
1996-1997: University of Alabama, Lecturer
- History 111, History of Europe to 1715
- History 112, History of Europe since 1715
- History 150W: History of the Family in Old Europe (freshman seminar)
- History 192, Global History since 1500
- History 240: The Crusades
- History 355: Medieval Europe I (to 1000)
- History 356: Medieval Europe II (since 1000)
- History 490C: European Historiography to 1600
- History 490C: History of the Family in Old Europe (upper-level colloquium)
- History 495/496: Honors Thesis in History
Has served as Chair of the Department of History, Director of the Program in Medieval and Renaissance Studies, and Ombudsperson for the Graduate School of Arts and Sciences.
Honors, Prizes, and Awards
- La corónica International Book Award “for the best monograph published on Medieval Hispanic Languages, Literatures, and Cultures,” 2018Plumeri Award for Faculty Excellence, 2018
- The Thomas Ashley Graves, Jr., Award for Sustained Teaching Excellence, 2016
- James Pinckney Harrison Chair, 2013-2016
- Phi Beta Kappa Award for Excellence in Teaching (Alpha Chapter of Virginia), 2006
- University Chair in Teaching Excellence, 2005-2008 (three-year term)
- Alumni Fellowship Award in Teaching, 2004