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Lot Essay
Also known as Tawdih al-tadhkira, this text is a commentary on Nasir al-Din Tusi's Tadhkira (Memoirs) composed in AH 711. Rosenfeld and Ihsanoglu list at least four copies of the commentary with similar titles, see, Mathematicians, Astronomers and Other Scholars of Islamic Civilisation and their works (7th-19th ), Istanbul, 2003, p.818. The preface of this manuscript states that the commentary consists of four babs, the sky, astronomy, the earth and the heavenly bodies. For a list of the works of Tusi see C. Brockelmann, Geschichte der Arabischen Litteratur, Leiden, 1996, I.670-676; S. I, 924-933.
Because of the importance of Tusi's scholarship, many commentaries on his works have been written. One possibility for the author of ours is Nizam al-Din al-Hasan bin Muhammad bin Husayn al-A'raj al-Qumi al-Nishapuri, known as Nizam Nishapuri. Probably born in Qum in northern Iran, he studied in Nishapur and was a mathematician and astronomer. He worked in the observatory of al-Shirazi in Tabriz under the Ilkhanid rulers Ghazan Khan (r. 1295-1304 AD) and Uljaytu (r. 1304-1317 AD). Another commentary on Tusi by Nishapuri was sold at Christie's, South Kensington, 10 October 2014, lot 311.
Because of the importance of Tusi's scholarship, many commentaries on his works have been written. One possibility for the author of ours is Nizam al-Din al-Hasan bin Muhammad bin Husayn al-A'raj al-Qumi al-Nishapuri, known as Nizam Nishapuri. Probably born in Qum in northern Iran, he studied in Nishapur and was a mathematician and astronomer. He worked in the observatory of al-Shirazi in Tabriz under the Ilkhanid rulers Ghazan Khan (r. 1295-1304 AD) and Uljaytu (r. 1304-1317 AD). Another commentary on Tusi by Nishapuri was sold at Christie's, South Kensington, 10 October 2014, lot 311.