William de Bosco explained

William de Bosco (also de Boys) was an English medieval churchman, college fellow, and university chancellor.^[1]

William de Bosco was one of the early Fellows of Merton College, Oxford, from 1284 to 1286.^[2] He was a doctor of theology and Chancellor of the University of Oxford.^[3] Later he became a Canon at Salisbury through Simon of Ghent, Bishop of Salisbury and also a Chancellor of Oxford University.^[4]

Notes and References

1. Book: . . Appendix 5: Chancellors of the University. 1988. 521–522. 0-333-39917-X. Hibbert. Christopher. Christopher Hibbert.
2. Book: Coates, Alan . English Medieval Books: The Reading Abbey Collections from Foundation to Dispersal . https://books.google.com/books?id=gZVtP5dONY8C&pg=PA97 . . Study at University . 1999 . 97 . 978-0198207566 .
3. Book: Wood, Anthony . The History and Antiquities of the Colleges and Halls in the University of Oxford . . Fasti Oxonienses . 1790 . 13 .
4. Book: Pantin, William Abel . The English Church in the Fourteenth Century: Based on the Birkbeck Lectures, 1948 . https://books.google.com/books?id=kPCm4F4N_A4C&pg=PA112. . The Geography of Learning . 2010 . 112–113 . 978-1108015295 .