A treasure in the Crusader campaign of 493 - this was during the era of Caliph Al-Musta'li Billah and his vizier Al-Afdal ibn Badr al-Din al-Jamali. Kanz al-Dawla himself was killed in this campaign.

The power and wealth of the Banu Kanz in Aswan and the Nubian region reached their peak in the 6th century AH, the 12th century AD, and their influence spread widely, encompassing most of the regions of Upper Egypt. The Fatimids were preoccupied with matters more important than the Banu Kanz and the Nubians in the south, such as the emergence of the Franks and the Crusader powers, as the Franks had seized much of the Levant.

The Fatimids' trust in the Banu Kanz led them to extend their vast influence in that large region to such an extent that when the Banu Kanz learned of the fall of the Fatimid state, they found the confidence within themselves to participate in the final events to consolidate the foundations of their principality. Initially, they stood with Saladin al-Ayyubi against the Fatimid state and assisted him in eliminating the fleeing Nubian kings to Upper Egypt in the aftermath of their defeat by Saladin.

However, he later turned against Saladin in 1174/570 AD to launch a full-scale rebellion and reinstate Prince Dadi, son of Caliph Al-Adid, known as Al-Imamah Billah. The motive for the Banu Kanz's participation in opposing Saladin was their sense of danger when Prince Shams al-Dawla Turanshah, Saladin's brother, granted the fortress of Ibrim to one of his commanders, Ibrahim al-Kurdi, and then granted the Upper Kurdish lands to him upon his return from his campaign, bringing the Kurdish leader Abu al-Hija al-Sammin. Kanz al-Dawla then launched a fierce revolt against the Ayyubids, gathered a large army of Arabs, Nubians, and all the supporters of the Fatimids, and marched towards Cairo to restore the Fatimid state. Kanz al-Dawla succeeded in defeating the Ayyubid army stationed in Upper Egypt and killed the brother of the Ayyubid ruler. Kanz al-Dawla was joined by some princes who were hostile to the Ayyubid state.