1294
After the assassination of Al-Ashraf khalil in December 1293, he was installed as Sultan with Zayn-ad-Din Kitbugha as regent and vice-Sultan and Emir Sanjar al-Shuja'i as Vizier. Al-Nasir was only a nominal 9-year-old Sultan. Kitbugha and al-Shuja'i were the actual rulers of Egypt. The two Emirs, Kitbugha who was of Mongol origin and al-Shuja'i were rivals and had bad relation with each other. al-Shujai with the support of the Burji Mamluks planned to arrest Kitbugha and assassinate his Emirs but Kitbugha sieged the Citadel and the conflict ended by the murder of al-Shuja'i and the removal of the Burjis from the Citadel.
When Emir Hossam ad-Din Lajin who fled after the murder of Al-Ashraf Khalil showed up in Cairo, the Burji Mamluks who were called al-Mamalik al-Ashrafiyah Khalil ( Mamluks of al-Ashraf Khalil ) and who were removed from the Citadel by Kitbugha, rebelled and went on rampage in Cairo as Lajin was not arrested and punished for his involvement in the murder of their benefactor Sultan al-Ashraf Khalil. The Ashrafiyah were defeated and many of them were killed and executed. Lajin convinced Kitbugha to depose Al-Nassir Muhammed and install himself as Sultan after he warned him that the Ashrafiyah and later Al-Nassir himself will seek revenge for the murder of Khalil in which Kitbugha also was involved. Kitbugha deposed Al-Nassir Muhammed and installed himself Sultan with Lajin as his vice-Sultan. Al-Nassir, who was by now 10-years-old, was removed with his mother to another section in the palace where they stayed until they were sent to Al Karak ending the first reign of Al-Nassir Muhammad. ( See Al-Adil Kitbugha and Lajin )
Read more about this topic: Al-Nasir Muhammad, 1st Reign : 1293