Mahmud Celaleddin Efendi

However, scholars have used an analysis of the progression of his skill and level of competence to estimate his date of birth as approximately 1750.

[1] As a boy, he moved to Istanbul with his father, Mahmud Jalaleddin, who had migrated together with Mehmed Efendi, one of the Shayshandy sheikhs.

[3] Like his contemporaries, Mustafa Râkim and İsmail Zühdi, Celaleddin worked on improving Arabic scripts.

The Sultan Abdulmecid had been one of Celaleddin's students and he encouraged the court calligraphers to produce works in Celaladdin's style.

[6] He was living in Istavroz (Beylerbeyi's current Abdullahaga district) on the Bosphorus, at the time of his death in 1829 and was buried in the Sheikh Murad Lodge near Eyüp Sultan.