Delw y byd is a Middle Welsh translation of Book 1 of the medieval Latin encyclopedia Imago mundi, written by Honorius Augustodunensis.
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Middle Welsh version of the Itinerarium fratris Odorici, a 14th-century account of the travels of Franciscan friar Odoric of Pordenone from Italy to Asia. The Welsh version is known from a unique copy in Llanstephan MS 2, where it is attributed to Syr Dafydd Fychan from Glamorgan.