Count Cassius
Count Cassius, also called "Count Casius", was a Hispano-Roman or Visigothic nobleman who founded the Banu Qasi dynasty.
His actual existence has been contested on the grounds that embellishing stories related to Gothic ancestry were rather... Wikipedia
Grandchild: Musa I
Children: Fortun ibn Qassi
Great grandchildren: Musa ibn Musa al-Qasawi and Mutarrif ibn Musa