In medieval Occitania (southern France), troubadours and monastic creators fostered a vibrant musical culture. In response to the early Crusade campaigns of the twelfth and thirteenth centuries, Christians of the region turned to producing monophonic, poetic song, encompassing both secular and sacred genres. These works assert shifting regional identities and worldviews, exploring devotional practices and religious beliefs, overlaid with notions of contemporaneous geopolitics and secular, intellectual interests. Mapping Medieval Identities in Occitanian Crusade Song demonstrates the profound impact the Crusades had on two seemingly discrete musical-poetic practices: the Latin, sacred Aquitanian versus, associated with Christian devotion, and the vernacular troubadour lyric, associated with courtly love. Rachel May Golden investigates how such Crusade songs distinctively arose out of their geographic environment, uncovering intersections between the beginning of Holy War and the emergence of new styles of poetic-musical composition. She brings together sacred and secular genres of the region to reveal the inventiveness of new composition and the imaginative scope of the Crusades within medieval culture. These songs reflect both the outer world and interior lives, and often their conjunction, giving shape and expression to concerns with the Occitanian homeland, spatial aspects of the Crusades, and newly emerging positions within socio-political history. Drawing on approaches from cultural geography, literary studies, and musicology, Mapping Medieval Identities in Occitanian Crusade Song provides a timely perspective on geopolitical and cultural interactions between nations.