Throughout the ninth and early tenth centuries, the maritime and riverine landscapes of northwestern Francia had been subject to recurrent acts of viking aggression. Resonating in the minds of many consecutive Netherlandish authors, these agents continued to feature in an extensive regional corpus of late medieval historiography. Whilst many chroniclers were notably faithful to their diverse source material in recounting these early medieval events, others deliberately embellished or otherwise fictionalised vikings as abstract and anachronistic antagonists. By highlighting its sociopolitical context, authorial intent, and assorted textual influences, this preliminary study explores the historiographical depiction of the viking phenomenon as an ongoing narrative theme across the late medieval Low Countries.