This contribution deals with the manuscripts of the Wroclaw University Library, in which works by the English reformer John Wyclif (+ 1384) are recorded. It shows that besides one known manuscript dating from the second half of the 15th century, Sg. IV F 7, and containing the work De universalibus, there are two copies of Wyclif's letter to the pope Urban VI (in the manuscripts dating from the first half of the 15th century, Sg. I F 594 and I F 707), and that in the former of the manuscripts mentioned a text dealing with the preparation for taking the Eucharist is recorded too, which otherwise survives in two Viennese manuscripts and is an item of the list of Wyclif's works regarded as dubium. Moreover, the article mentions two Wyclifi an spuria (Sg. I F 733 and I F 570). All these copies came into being as marginalia of the reception of Wyclif's work in Bohemia.
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