The pagan Slavs of Antiquity and the Middle Ages long shared a common pantheon, dominated by Perun, the storm god, master of the sky and the elements. Known from ancient texts, but also from songs, tales, and even place names, he survived Christianization by being reclaimed by two saints: Elijah and George, who took his place. The Slavic Storm God Perun is the first monograph published in a Western language devoted to a deity of the Slavic pantheon. Patrice Lajoye works at the French National Center for Scientific Research (CNRS). He holds a doctorate in the History of Comparative Religions and is the author of various works on Celtic and Slavic mythologies.