Sini Kangas is an historian and senior lecturer at the School of Social Sciences and Humanities, University of Tampere. She was born in Helsinki in 1973 and studied at the University of Helsinki, where she also received her Ph.D. in 2007, as well as a diploma in pedagogical studies in higher education in 2011. Before her present position at the University of Tampere, she had been working in several doctoral and postdoctoral research projects at the University of Helsinki, including a two-year research fellowship at  the  Helsinki  Collegium  for  Advanced  Studies.  Her  scholarly  interests  extend  to various fields of medieval history, including the history of the crusades and the Latin east, medieval ideological warfare, and the history of childhood. At the moment she is completing a monograph on crusader violence under the topic, The Concept of the Crusade and Christian Violence, and starting a new project Conflicting Childhoods: Underage Indoctrination in Holy War in the Medieval West (c. 1100−1350). Her recent publications include  the monograph,  Authorities  in the Middle  Ages:  Influence, Legitimacy,  and Power in Medieval Society (Walter deGruyter, 2013), edited in collaboration with Mia Korpiola and Tuija Ainonen, and articles on “Slaughter of the Innocents and Depiction of Children in the Twelfth-Century Sources of the Crusades” (in The Uses of the Bible in Crusading Sources, ed. by Elizabeth Lapina and Nicholas Morton. Brill, forthcoming in 2015) and “Growing up to Become a Crusader: The Next Generation” (in Jerusalem the Golden. The Origin and Impact of the First Crusade, ed. by Susan Edgington and Luis García-Guijarro. Outremer 3, Brepols, 2014, 255−72).  In her spare time she enjoys the company of her family, reading historical fiction, horseback riding, and cooking.