John Westwyk

John Westwyk (/wɛstwɪk/; also known as John of Westwick; Latin: Johannes de Westwyke; c.1350-c.1400) was an English astronomer, adventurer, Benedictine monk, and author of the Equatorie of the Planetis.

John Westwyk
Bornc.1350
Gorham-Westwick, Hertfordshire, England
Diedc.1400
St Albans?
OccupationMonk, astronomer, instrument-maker, mathematician, crusader

Biography

Little is known of John Westwyk's early life. The name Westwyk is almost certainly a toponym; he presumably came from the hamlet of Gorham-Westwick, two miles west of St Albans.[1] He was a monk of St Albans Abbey by 1380, and was most likely ordained between 1368 and 1379.[2] Like many monks, he was probably the son of a mid-ranking peasant or yeoman.[3]

Westwyk probably received a basic education in the almonry school associated with the Abbey. Like around ten per cent of the St Albans monks, he may have attended the University of Oxford.[4] He certainly studied astronomy within St Albans Abbey, and wrote out or annotated at least two astronomy books while there.[5] Both books contained works by former abbot Richard of Wallingford (r. 1327-36), testament to Wallingford's longstanding influence on the intellectual life of the abbey.[6]

Between 1380 and 1383 Westwyk was a monk at Tynemouth Priory in Northumbria.[7] Tynemouth was a dependent cell of St Albans Abbey, and monks were often sent there from the mother house either as punishment or to prove themselves.[8] While at Tynemouth, Westwyk continued his studies, annotating at least two manuscripts.[9] In 1383 Westwyk joined the Despenser's Crusade, which captured Gravelines and unsuccessfully besieged Ypres. According to the St Albans chronicler Thomas Walsingham, Westwyk returned safely from the failed crusade.[10]

Nothing is known of Westwyk in the years 1383-93. However, in 1393 he drafted a set of tables and produced an instruction manual for a planetary equatorium, now known as the Equatorie of the Planetis.[11] His tables show he was working in London, probably at the Abbot of St Albans's inn on Broad Street.[12] His equatorium drew on earlier designs such as that by Jean de Lignières, and is somewhat similar to an equatorium that survives in the library of Merton College, Oxford, but was easier to make and more user-friendly than earlier models.[13] He evidently built it himself, albeit not at full scale.[14] His instructions were written out in the Middle English pioneered for astronomy by Geoffrey Chaucer's Treatise on the Astrolabe, and he cites Chaucer by name.[15] In the accompanying tables, he demonstrated painstaking copying and a flair for precise calculation.[16]

Later in life, Westwyk probably returned to St Albans Abbey. He is named as a monk of St Albans on a papal indult dated May 1397, and this may have been an end-of-life one.[17] There is no record of him after this, and it seems likely that he died soon afterwards.

Modern study

Westwyk's Equatorie manuscript was in the library of Peterhouse, Cambridge by 1538, and probably by 1472.[18][19] It was discovered there by the historian Derek de Solla Price in December 1951, making headlines worldwide.[20] Price believed the manuscript was authored by, and written in the hand of, Geoffrey Chaucer.[21] This was a controversial claim, and was treated with some scepticism by Chaucer scholars,[22] though it received influential backing from the historian of astronomy John North.[23] The manuscript was shown to be in the hand of John Westwyk by Kari Anne Rand in 2014.[24][25]

Sources
  • Falk, Seb (2020). The Light Ages: A Medieval Journey of Discovery. London: Penguin. ISBN 978-0241374252.CS1 maint: ref=harv (link)
  • North, J.D. (1988). Chaucer's Universe. Oxford: Clarendon Press. ISBN 0-19-812668-9.
  • Price, Derek J. (1955). The Equatorie of the Planetis. Cambridge University Press. p. 3. ISBN 9781107404274.
  • Rand, Kari Anne (2015). "The Authorship of The Equatorie of the Planetis Revisited". Studia Neophilologica. 87 (1): 15–35. doi:10.1080/00393274.2014.982355.
  • Rand Schmidt, Kari Anne (1993). The Authorship of the Equatorie of the Planetis. D.S. Brewer. ISBN 0-85991-370-8.

References
  1. Rand 2015, p. 19.
  2. Falk 2020, p. 79.
  3. Falk 2020, p. 18.
  4. Clark, James G. (2004). A Monastic Renaissance at St. Albans: Thomas Walsingham and His Circle, c. 1350–1440. Oxford University Press. p. 65.
  5. Oxford, Bodleian Library, MS Laud Misc. 657, ff. 1v-52v; Oxford, Corpus Christi College, MS 144, f. 80r.
  6. Falk, Seb (2019). "'I found this written in the other book': Learning Astronomy in Late Medieval Monasteries". Studies in Church History. 55: 129–44, at 134.
  7. Falk 2020, p. 162.
  8. Rand 2015, pp. 21-23.
  9. Cambridge, Pembroke MS 82, f. 1r; London, British Library Harley MS 4664, f. 125v.
  10. Walsingham, Thomas (1867). Gesta Abbatum monasterii Sancti Albani, ed. H. T. Riley. London: Rolls Series. p. II:416.
  11. Cambridge, Peterhouse MS 75.I
  12. Falk 2020, p. 242.
  13. Falk 2020, pp. 273-9.
  14. Falk 2020, p. 269.
  15. Rand Schmidt 1993, pp. 14, 40-6.
  16. Falk, Seb (2016). "Learning Medieval Astronomy through Tables: The Case of the Equatorie of the Planetis". Centaurus. 58 (1–2): 6–25. doi:10.1111/1600-0498.12114.
  17. Rand 2015, p. 25.
  18. Cambridge, Peterhouse MS 75.I
  19. Rand Schmidt 1993, pp. 112-3.
  20. Falk, Seb (2014). "The scholar as craftsman: Derek de Solla Price and the reconstruction of a medieval instrument". Notes and Records of the Royal Society. 68 (2): 111–134. doi:10.1098/rsnr.2013.0062.
  21. Price 1955, p. 3.
  22. Edwards, A.S.G.; Mooney, Linne R. (1991). "Is the "Equatorie of the Planets" a Chaucer Holograph?". The Chaucer Review. 26 (1): 31–42.
  23. North 1988, pp. 169-77.
  24. Bridge, Mark (18 June 2020). "'Forgotten' monk paved the way for Copernicus". The Times. Retrieved 24 September 2020.
  25. Rand 2015.
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