The Bern Riddles, also known as Aenigmata Bernensia, Aenigmata Hexasticha or Riddles of Tullius, are a collection of 64 rhythmic Latin riddles, named after the location of their earliest surviving manuscript, which today is held in Bern (though probably produced in Bourges): the early eighth-century Codex Bernensis 611.[1][2]
^David Ganz, 'In the Circle of the Bishop of Bourges: Bern 611 and Late Merovingian Culture], in East and West in the Early Middle Ages: The Merovingian Kingdoms in Mediterranean Perspective, ed. by Stefan Esders, Yaniv Fox, Yitzhak Hen and Laury Sarti (Cambridge: Cambridge University Press, 2019), pp. 265-80; doi:10.1017/9781316941072.018.