Skip to content
Deacon Keith Fournier Hi readers, it seems you use Catholic Online a lot; that's great! It's a little awkward to ask, but we need your help. If you have already donated, we sincerely thank you. We're not salespeople, but we depend on donations averaging $14.76 and fewer than 1% of readers give. If you donate just $5.00, the price of your coffee, Catholic Online School could keep thriving. Thank you. Help Now >

Jean de Saxe

Free World Class Education
FREE Catholic Classes

For a long time two astronomers of the Middle Ages were confounded under this name.

(1) Joannes Danko

(Also DE DANEKOWE or DE SAXONIA). Composed (1297) the "Notulae super compotum"; there is also in Paris a copy of the Canons of Jean de Linières made by him (1323).

(2) Jean de Counnout

(Also DE CONNAUGHT or DE SAXONIA)

Jean de Counnout was likewise a disciple and great admirer of Jean de Linières, and a composer of various astronomical and astrological works. In 1327 he drew up the "Canones super tabulas Alfonsii regis Castellae", of great and lasting fame; in 1331 he reviewed the "Introductorium ad judicia astronomiae" of Al-Kabici (Alchabitius). In 1355 he composed examples of numerical computation on the "Canons" of Jean de Linières, later on his own "Canons", to give the students of the University of Paris practice in the use of astronomical tables. The "Canones in tabulas Alfonsii" were printed following the "Alfonsian Tables" in 1483. The "Scriptum super Alkabicium" was published at Venice, 1489, 1491, 1502, 1503, and in Paris in 1520.

Never Miss any Updates!

Stay up to date with the latest news, information, and special offers.

Catholic Online Logo

Copyright 2020 Catholic Online. All materials contained on this site, whether written, audible or visual are the exclusive property of Catholic Online and are protected under U.S. and International copyright laws, © Copyright 2020 Catholic Online. Any unauthorized use, without prior written consent of Catholic Online is strictly forbidden and prohibited.

Catholic Online is a Project of Your Catholic Voice Foundation, a Not-for-Profit Corporation. Your Catholic Voice Foundation has been granted a recognition of tax exemption under Section 501(c)(3) of the Internal Revenue Code. Federal Tax Identification Number: 81-0596847. Your gift is tax-deductible as allowed by law.