Fakhr al-Din ibn al-Sa'ati

Riḍwān's brother, Bahāʿ al-Dīn ibn al-Sāʿātī, became a famous poet.

[3] Muḥammad was a muwaqqit trained in clockmaking and astronomy who was commissioned by the Emir Nūr al-Dīn (1156–1174) to construct the water clock at the Jayrūn Gate by the entrance of the Umayyad Mosque in Damascus.

Riḍwān also learned clockmaking and wrote a book in Arabic on his father's clock and the repairs and improvements he made to them, Risāla fī ʿamal al-sāʿāt wā-ʾstiʿmālihā.

[6] Called Ibn al-Sāʿātī on account of his father, Riḍwān studied medicine, literature, logic and philosophy on top of clockmaking.

He could play the lute and he collected works of Arabic poetry into a book, the Kitāb al-Muhtārāt.

Drawing of his father's clock by Riḍwān ibn al-Sāʿātī