Isma'il ibn Musa
He hailed from the prominent Muwallad Banu Qasi clan , and was the son of Musa ibn Musa ibn Qasi and his wife Maymuna bint Zahir ibn Furtun , who was Musa's uncle . 
<triplet> Musa ibn Musa ibn Qasi <subj> Banu Qasi <obj> family