Qutb al-Din al-Shirazi died in 1311 at the age of 75, leaving behind an expansive body of work that bridged medicine, mathematics, and astronomy. Born in 1236, he emerged from a lineage of physicians to become a central intellectual figure within the Ilkhanate, navigating diverse professional roles across the Islamic world during a period of significant scientific transition.
Early Training and Medical Practice
Born in Kazerun, al-Shirazi initially followed his father into the medical profession. After receiving his early education at the Mozaffari hospital in Shiraz, he took over his father's role as an ophthalmologist. His technical training centered on the study of Avicenna's Canon of Medicine. Over time, he deepened his expertise by consulting various commentaries, eventually producing his own critical examinations that challenged established interpretations of the period.
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Seeking to expand his scientific knowledge, al-Shirazi left Shiraz for Maragha around 1262. He studied under the scholar-vizier Nasir al-Din al-Tusi, focusing on both astronomy and philosophy. During his tenure at the newly established observatory, he collaborated on the development of new astronomical tables. This period of intense research marked a departure from his clinical practice, as he shifted his primary focus toward mathematical and astronomical inquiry.
Diplomacy and Scholarly Output
Al-Shirazi traveled extensively through Qazvin, Isfahan, Baghdad, and Konya, where he engaged with local intellectual circles and encountered the poet Rumi. His administrative career included serving as a judge in Sivas and Malatya under Mu'in al-Din Parwana, followed by a diplomatic mission as an envoy to the Mamluk ruler Sayf al-Din Qalawun on behalf of Ahmad Takudar. Throughout these travels, he authored numerous treatises, including his major encyclopedic work, the Pearly Crown.
Fast facts
- Born: 1236, Kazerun
- Died: 1311, Tabriz
- Citizenship: Ilkhanate
- Primary occupations: Astronomer, physician, mathematician
- Key work: Durrat al-taj li-ghurrat al-Dabbāj
- Religious affiliation: Sunni Islam
- Language of works: Arabic, Persian
Questions readers ask
What were the primary areas of Qutb al-Din al-Shirazi's research?
He worked across several fields, most notably astronomy, medicine, mathematics, philosophy, and music theory.
Where did he conduct his astronomical studies?
He conducted significant research at the observatory in Maragha under the guidance of Nasir al-Din al-Tusi.
Achievements
- Fields: astronomy, medicine and mathematics

