Jacomijne Costers (1462/3–1503) was a canoness in the Antwerp Facons convent. This convent belonged to the Augustinian Congregation of Windesheim, the monastic branch of the Devotio moderna. At the time of her profession, the convent suffered from lax spirituality and observance of the rule. Costers’s authorship commenced after a near-death experience at age twenty-seven, when she was struck by the plague. This inspired her afterlife vision aimed at reform of the convent, despite the Windesheim prohibition of nuns writing about visionary experiences. This text, known as Visioen en exempel and influenced by the twelfth-century Visio Tnugdali, has been interpreted in the context of monastic reform and of collective pandemic trauma.