Schiltberger is perhaps the first writer of Western Christendom to give the true burial place of Muhammad at Medina: his sketches of Islam and of Eastern Christendom, with all their shortcomings, are of remarkable merit for their time: and he may fairly be reckoned among the authors who contributed to fix Prester John, at the close of the Middle Ages, in Abyssinia. Schiltberger also recorded one of the first European sightings of Przewalski horses. (Manuscript in the Munich Municipal Library, Sign. 1603, Bl. 210). His work, however, contains many inaccuracies; thus in reckoning the years of his service both with Bayezid and with Timur he is off unaccountably in multiples of two.