About John of London
John of London was an astronomer and mathematician.
John of London , mathematician, was described by Roger Bacon as one of two "perfect" mathematicians, together with Pierre de Maricourt. Bacon probably knew John in Paris in the 1260s.
No works are certainly attributed to him, but he may be the author of an influential table of stellar co-ordinates. He may also be the "Master John of London" who designed a form of astrolabe and was described by Roger of Lincoln as "astronomus famosus" ("renowned astronomer").
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Frequently asked questions
Who was John of London?
Mathematician and astronomer
What was John of London's occupation?
John of London was an astronomer and mathematician.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). John of London. https://biography.guide/john-of-london/
MLA: "John of London." Biography.guide, https://biography.guide/john-of-london/.
Chicago: "John of London." Biography.guide. https://biography.guide/john-of-london/.
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