xAlison Chapman (ed.) and the DVPP team, “Adolfus, Duke of Guelders. Fifteenth and Sixteenth Centuries,” Digital Victorian Periodical Poetry Project, Edition 0.98.10beta
, University of Victoria, 30th April 2025, https://dvpp.uvic.ca/alltheyearround/1861/pom_2850_adolfus_duke_of_guelders.html.