Question: Ibn al-Sal'us was the chief financial adviser for the sultanate that spanned which realm?

 Ibn al-Sal'us began his career as a merchant based in Damascus, where he was eventually employed as a deputy "muhtasib" (market inspector).  He gained a good reputation for his efforts at ensuring accountability in Damascene commerce.  He was later appointed chief "muhtasib" in Cairo by Sultan al-Mansur Qalawun in 1290, but was soon after exiled to the Hejaz.  When al-Ashraf Khalil succeeded Qalawun in November 1290, he recalled Ibn al-Sal'us to Cairo and appointed him "wazir".  Ibn al-Sal'us restored the political influence of the office of "wazir" and accompanied al-Ashraf Khalil during military expeditions against the Crusaders and the Armenians.  His arrogance toward senior Mamluk emirs drew their resentment. Al-Sahib Shams ad-Din Muhammad ibn Uthman ibn Abi al-Raja' al-Tanukhi, better known as Ibn al-Sal'us (died 10 December 1294), was an Arab merchant and the "wazir" (chief financial adviser) of the Mamluk sultan, al-Ashraf Khalil (r. 1290–1293).  In the months following al-Ashraf Khalil's murder, Ibn al-Sal'us was arrested and tortured to death on the orders of his rival, Emir Sanjar al-Shuja'i. <SEP>  It lasted from the overthrow of the Ayyubid dynasty until the Ottoman conquest of Egypt in 1517.  Historians have traditionally broken the era of Mamlūk rule into two periods—one covering 1250–1382, the other, 1382–1517. The Mamluk Sultanate (Arabic: سلطنة المماليك‎ ‎ "Salṭanat al-Mamālīk") was a medieval realm spanning Egypt, the Levant, and Hejaz.  Western historians call the former the "Baḥrī" period and the latter the "Burjī" due to the political dominance of the regimes known by these names during the respective eras.  Contemporary Muslim historians refer to the same divisions as the "Turkish" and "Circassian" periods in order to stress the change in the ethnic origins of the majority of Mamlūks. <SEP> Bernard Bernstein (30 November 1908 – 6 February 1990) was an American economist and public official.  As a U.S. Army colonel, he served as a financial adviser to General Eisenhower in World War II, and after the war was on the Control Commission for Germany, but was removed when the Morgenthau Plan, with which he was associated, was not adopted.  Additionally, he held multiple offices concurrently.  From 1933 until 1948, he was an Attorney for the U.S. Treasury Department.  From 1942 through 1943, he was a Financial Adviser, North African Economic Control Board.  From 1944 through 1945, he was Director, Finance Division and Director of the Division of Investigation of Cartels and External Assets, U.S. Group Control Commission for Germany.  From 1942 through 1945, he acted as Financial Adviser to Gen. Eisenhower for Civil Affairs and Military Government, European Theater of Operations and MTO. <SEP> Joshua Nyamweya Oigara is the Group Chief Executive Officer of the Kenya Commercial Bank Group.  At age 37, his appointment in November 2012 to replace the outgoing CEO Martin Oduor-Otieno made him the youngest CEO of a publicly traded bank at the NSE.  Prior to his appointment, he served as Chief Financial Officer and Member of the Board of Directors of the Company between January 12, 2012 and January 2013.  He also served as Group Chief Financial Officer at KCB Bank Group for East Africa.  He joined the Bank in November 2011 from Bamburi Cement where he served as Group Financial Director and Chief Financial Officer for the East Africa region.  Oigara holds a Bachelor of Commerce degree from University of Nairobi and Master of Business Administration from Edith Cowan University and a host of other qualifications.