Who is the Islamic scholar known as Sadr al-Sharia?

There have been multiple scholars who held the title "Sadr al-Din" throughout time and across different regions. Among them was Sadr al-Din Abu Bakr Muhammad ibn Abd al-Latif al-Khajandi al-Isfahani al-Shafi'i, who passed away in 552 AH. Another was Sadr al-Din Abu al-Qasim Abd al-Malik, the Qadi (judge) of the Egyptian lands, who was born in Mosul in 516 AH and died in 605 AH, and was considered one of the best judges.