▁March . ▁From ▁him ▁arose ▁a ▁short - l ived ▁dynast y , ▁the ▁Ban u ▁al - T aw il ▁( ), ▁who ▁would ▁rule ▁H ues ca , ▁Barb astro ▁and ▁L le ida , ▁off ▁and ▁on , ▁for ▁a ▁century , ▁eventually ▁losing ▁out ▁to ▁the ▁Ban u ▁T uj ib ▁of ▁Zar ago za . ▁ ▁Background ▁Muhammad ▁al - T aw il ▁was ▁son ▁of ▁Abd ▁al - Mal ik ▁ibn ▁Abd ▁Al lah ▁ibn ▁Sh ab rit , ▁a ▁local ▁lord ▁in ▁the ▁region ▁of ▁H ues ca . ▁He ▁was ▁a ▁sc ion ▁of ▁the ▁Ban u ▁Sh ab rit ▁cl an ▁( ), ▁the ▁descend ants ▁of ▁Sh ab rit , ▁a ▁late - e ighth - century ▁relative ▁and ▁al ly ▁of ▁re bel ▁Am rus ▁ibn ▁Y us uf . ▁On ▁ 1 2 ▁March ▁ 8 8 7 , ▁Muhammad ▁killed ▁the ▁great - grand son ▁of ▁Am rus , ▁Mas ' ud ▁ibn ▁Am rus , ▁governor ▁of ▁H ues ca , ▁and ▁seized ▁power ▁there . ▁ ▁R ival ry ▁with ▁the ▁Ban u ▁Q asi ▁In ▁ 8 8 9 / 9 0 , ▁Is ma ' il ▁ibn ▁Mus a ▁of ▁L le ida , ▁a ▁member ▁of ▁the ▁rival ▁Ban u ▁Q asi , ▁rose ▁in ▁re bell ion ▁against ▁the ▁Em ir ate . ▁Muhammad ▁amb ushed ▁an ▁army ▁led ▁by ▁Is ma ' il ' s ▁sons , ▁Mus a ▁and ▁Mut arr if