[1] His name Makki is rooted from his family background who left Mecca and migrated first to Tabaristan and from there they settled the nearby city of Rey.
He studied Ash'rai theology and Quranic interpretation with Abu al-Qasim al-Ansari, the leading Ash'arite figure in the Muslim East, following the death of his master al-Juwayni.
An authentic copy of the second volume on his most significant work, the Ash'ari theology summa, Nihayat al-Maram fi Dirayat al-Kalam ("The acme of aspirations in the study of kalam"), has just shown up.
Because it is one of the few surviving summae of traditional Ash'arism and because it provides insight into the theological transition that occurred during Fakhr al-Din's upbringing, this book is historically significant.
The extant portion of the Nihaya closely follows al-Juwayni's and al-Ansari's kalam works in terms of theological content and structure.