Son of a kadi and poet, Ali Çelebi (1510-1571) studied in Istanbul and became an assistant (mülazim) of the şeyhülislam (1539-41) Çivizade (d. 1547, a strong opponent of Sufi thought and especially of Ibn Arabi). Having submitted his works to the opponent of the latter, Ebussuud Efendi, he was appointed as müderris in various medreses in Edirne, Bursa, Kütahya, finally Istanbul. In 1563 he was sent as a kadi to Damascus, then to Cairo, Bursa and Edirne. In 1570 he was appointed kadi of Istanbul, and next year Anadolu kazaskeri. He died in 1571.
Ahlâk-ı Alâî (“Sublime Ethics”). He also wrore various treatises on fikh, on history, on correspondence and on Holy Law.