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The information provided by fourth and fifth-century sources on the executions of Caesar Crispus, son of Constantine, Licinius Licinianus, his nephew, and Fausta, his wife, in 326 CE, documents the birth of a literary genre, the relation of historical facts based on written and oral sources. The extant information is based, on the whole, on the implementation of the damnatio memoriae of the three members of the imperial family by Constantine. The most credible narratives (by Aurelius Victor, Eutropius, Peanius, and Hieronymus) confirm that the reasons for the punishments were unknown to ancient authors, even though they differed for each one. Nevertheless, circumstantial ties can be established between the death of Licinius and that of Martinian owing to the uprising by the former emperor one year before in Thessaloniki.