The Al Fadl clan (a branch of the Tayy tribe) were loyal to the Mamluks, and in 1281, Prince Issa bin Muhanna of the Al Fadl was appointed lord of Palmyra by sultan Qalawun.
Issa was succeeded in 1284 by his son Muhanna bin Issa who was imprisoned by sultan al-Ashraf Khalil in 1293, and restored two years later by sultan al-Adil Kitbugha.
Muhanna declared his loyalty to Öljaitü of the Ilkhanate in 1312 and was dismissed and replaced with his brother Fadl by sultan an-Nasir Muhammad.
Although Muhanna was forgiven by an-Nasir and restored in 1317, he and his tribe were expelled in 1320 for his continued relations with the Ilkhanate, and he was replaced by tribal chief Muhammad ibn Abi Bakr.

Muhanna was forgiven and restored by an-Nasir in 1330; he remained loyal to the sultan until his death in 1335, when he was succeeded by his son.
Contemporary historian Ibn Fadlallah al-Omari described the city as having "vast gardens, flourishing trades and bizarre monuments".
The Al Fadl clan protected the trade routes and villages from Bedouin raids, raiding other cities and fighting among themselves.
The Mamluks intervened militarily several times, dismissing, imprisoning or expelling its leaders.
In 1400 Palmyra was attacked by Timur; the Fadl prince Nu'air escaped the battle and later fought Jakam, the sultan of Aleppo.
Nu'air was captured, taken to Aleppo and executed in 1406; this, according to Ibn Hajar al-Asqalani, ended the Al Fadl clan's power.
The Al Fadl clan (a branch of the Tayy tribe) were loyal to the Mamluks, and in 1281, Prince Issa bin Muhanna of the Al Fadl was appointed lord of Palmyra by sultan Qalawun. Issa was succeeded in 1284 by his son Muhanna bin Issa who was imprisoned by sultan al-Ashraf Khalil in 1293, and restored two years later by sultan al-Adil Kitbugha. Muhanna declared his loyalty to Öljaitü of the Ilkhanate in 1312 and was dismissed and replaced with his brother Fadl by sultan an-Nasir Muhammad. Although Muhanna was forgiven by an-Nasir and restored in 1317, he and his tribe were expelled in 1320 for his continued relations with the Ilkhanate, and he was replaced by tribal chief Muhammad ibn Abi Bakr.
Muhanna was forgiven and restored by an-Nasir in 1330; he remained loyal to the sultan until his death in 1335, when he was succeeded by his son. Contemporary historian Ibn Fadlallah al-Omari described the city as having "vast gardens, flourishing trades and bizarre monuments". The Al Fadl clan protected the trade routes and villages from Bedouin raids, raiding other cities and fighting among themselves. The Mamluks intervened militarily several times, dismissing, imprisoning or expelling its leaders. In 1400 Palmyra was attacked by Timur; the Fadl prince Nu'air escaped the battle and later fought Jakam, the sultan of Aleppo. Nu'air was captured, taken to Aleppo and executed in 1406; this, according to Ibn Hajar al-Asqalani, ended the Al Fadl clan's power.
Palmyra