Fakhr al-Muhaqqiqeen

This is the title given to Allama Hilli's son. His first name was Muhammad. Born in 682 AH., he studied under his father Allama Hilli who was so impressed by the son's brilliance that he called him Fakhr al Muhaqqiqeen. In his preface to Qawaid, Allama writes his son's name showering much praise on him, and at the end of the book prays that his son would attend to his incomplete works. His famous book on Fiqh is 'Aydhah al-Fawaid' which he wrote to elucidate some difficult parts of his father's Qawaid. The opinions and deductions by this great Faqih are still taken into account by the Fuqaha. He died in 771 A.H.