▁the ▁Turk ic ▁Sel j uk ▁invasion ▁in ▁the ▁latter ▁half ▁of ▁the ▁ 1 1 th ▁century , ▁only ▁the ▁Ban u ▁Rab i ' ah , ▁a ▁cad et ▁branch ▁of ▁the ▁Jar rah ids , ▁remained ▁as ▁an ▁influ ential ▁Arab ▁force ▁in ▁the ▁Sy rian ▁ste ppe ▁by ▁the ▁end ▁of ▁the ▁century . ▁ ▁There ▁is ▁sc ant ▁information ▁about ▁the ▁management ▁of ▁the ▁Sy rian ▁Bed ou in ▁by ▁the ▁r uling ▁Muslim ▁states ▁between ▁the ▁early ▁ 1 1 th ▁and ▁mid - 1 3 th ▁centuries . ▁Like wise , ▁the ▁orig ins ▁of ▁the ▁title ▁of ▁am ir ▁al - ʿ arab ▁are ▁unclear . ▁A ▁number ▁of ▁medieval ▁Muslim ▁chron ic lers ▁referred ▁to ▁S ali h ▁ibn ▁M ird as ▁( d . ▁ 1 0 2 9 ), ▁the ▁founder ▁of ▁the ▁M ird as id ▁em ir ate ▁in ▁Ale ppo , ▁as ▁am ir ▁ ʿ arab ▁al - Sh am , ▁which ▁transl ates ▁from ▁Arab ic ▁as ▁" comm ander ▁of ▁the ▁Bed ou in ▁of ▁Sy ria ". ▁S ali h ' s ▁al ly ▁Hass an ▁ibn ▁M uf ar rij , ▁ch ie ft ain ▁of ▁the ▁Jar rah ids , ▁was ▁also ▁referred ▁to ▁as ▁am ir ▁al - ʿ arab ▁by ▁medieval ▁sources . ▁According ▁to ▁historian ▁Su h ay l ▁Zak kar , ▁the ▁" value " ▁of ▁the ▁title ▁" is ▁not ▁known ▁but ▁at ▁least ▁indicates ▁the ▁high ▁position