Liber Scintillarum (literally "The Book of Sparks") is a late seventh or early eighth-century florilegium of biblical and patristic sayings in Latin. It was compiled by Defensor, a monk who in the preface identifies himself as a member of St Martin's Abbey at Ligugé, near Poitiers, and who wrote the work at the behest of his teacher Ursinus, the abbot of St Martin's. Virtually nothing is known of the monk beyond what the preface offers us. The compilation was written sometime between 636, when the important source Isidore of Seville died, and about 750, when the earliest extant manuscript appears to have been produced.