Original sentence: The Hashemite royal families of Jordan and Iraq, the Alaouite royal family of Morocco, the Husseini family of Lebanon, and the Aga Khans of the Ismaili community claim direct descent from the prophet through Ali and Fatima
Edited sentence: The Hashemite royal families of Jordan and Iraq, the Alaouite royal family of Morocco, the Husseini family of Lebanon, and the Aga Khans of the Ismaili community (which have great proof supporting their claim) claim direct descent from the prophet through Ali and Fatima