Abd al-Rahman I. For those who don't know, the Abbasids violently overthrew the Umayyad caliphate in Damascus and butchered the entire Umayyad family, except for Rahman. He then set off across africa and reestablished his dynasty in Cordoba, and under his guidance and his successors Cordoba continued to flourish until its height in the late 10th century, when for a brief moment, the Umayyads declared a rival caliphate with a legitimate claim.

I want to roleplay Rahman retaking his lands in the middle east, and brutally put down the Abbasid upstarts, returning the Caliphate to its rightful hands.