Quṭb al-Dīn al-Shīrāzī's (634/1236-719/1311) Durrat al-Tāj and its Sources

Quṭb al-Dīn al-Shīrāzī, one of the highly esteemed figures of the intellectual life of the Eastern lands of Islam during the late 13th and early 14th century AD, authored two major works in the field of philosophy. One of these works, Durrat al-Tāj li-Ghurrat al-Dubāj, written in Persian, is investigated in this article. The fact that, with the exception of portions of the section on logic, no part of the philosophical sections of Durrat al-Taj was originally written by Quṭb al-Dīn al-Shīrāzī, suggests that his significance as a philosopher should be reconsidered.