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Shihab al-Din Ahmad ibn Ghulam Allah al-Kawm al-Rishi

شهاب الدين أحمد بن غلام الله الكوم الريشي

1384 CE · 786 AH – 1432 CE · 836 AH

Cairo

Cairene astronomer (786–836 AH), timekeeper at the mosque of al-Mu'ayyad Shaykh, who abridged Ibn al-Shatir's zij in al-Lum'a fi hall al-kawakib al-sab'a 1 2.

Depth

At a glance

Roles
Scholar
Era
The Crusades, Ayyubids and Mamluks
Region
Egypt & Nile

Life in time

13001325135013751400142514501475 c. c. c. c.
The Crusades, Ayyubids and Mamluks · The Mongol and Post-Mongol Era Contemporaries: Aisha bint Ibrahim ibn Khalil al-Ba'labakkiyya (Ibnat al-Shara'ihi) · Al-Barzali, Abu al-Qasim ibn Ahmad · Shams al-Din al-Bisati · al-Taqi al-Maqrizi · Shams al-Din al-Nuwaji

In space

Cairo

Map: Natural Earth, public domain · places and route from the graph

Astronomy and timekeeping

Summary

Shihab al-Din Ahmad ibn Ghulam Allah ibn Ahmad al-Hasib al-Kawm al-Rishi (786–836/1384–1432) took his name from Kawm al-Rish, a suburb of Cairo (today al-Zawiya al-Hamra), and served as timekeeper at the mosque of al-Mu'ayyad Shaykh near Bab Zuwayla. 1

What the book reports

The book cites Ibn Hajar: he worked in astronomy, knew much of judicial astrology, solved zij tables and wrote almanacs, and was well known for this; he was past fifty when he died in 836 AH. 1 His works include Nuzhat al-nazir fi talkhis zij Ibn al-Shatir and Kifayat al-ta'lim fi wad' al-taqwim. 1

Connections

Explore the connections

Authored
al-Lum'a fi hall al-kawakib al-sab'a (al-Kawm al-Rishi)
Lived in
Cairo

People and things also explored

Izz al-Din Abd al-Aziz ibn Muhammad al-Wafa'i· Hasan al-Jabarti· Al-Azhar Mosque· Bab al-Futuh, Cairo· Bab al-Nasr, Cairo· Bab Zuwayla, Cairo· Joseph's Well (Bir Yusuf), Cairo Citadel· Citadel of Cairo (Citadel of Salah al-Din)

Sources

  1. Contributions of Arab and Islamic Civilisation to Astronomy from the Scientific Manuscripts of al-Azhar Library, Alexandria: Bibliotheca Alexandrina (CULTNAT) and UNESCO, 2006 , p. 30
  2. Contributions of Arab and Islamic Civilisation to Astronomy from the Scientific Manuscripts of al-Azhar Library, Alexandria: Bibliotheca Alexandrina (CULTNAT) and UNESCO, 2006 , p. 31
Cite this page

islam.museum contributors. “Shihab al-Din Ahmad ibn Ghulam Allah al-Kawm al-Rishi”. islam.museum, https://islam.museum/en/person/ahmad-al-kawm-al-rishi/. CC BY-SA 4.0. Last updated 2026-11-04.

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People

Prophets, companions, scholars, rulers, scientists, poets, travelers: women and men who shaped the story. Related

Izz al-Din Abd al-Aziz ibn Muhammad al-Wafa'i

Egyptian astronomer (811–879 AH), timekeeper at the Mu'ayyadi Mosque in Cairo, inventor of the instrument called da'irat al-mu'addil, with more than twenty treatises.