Re: Family Tree
Mustali and Nizari are branches of Ismaili Shia Islam - Dawoodi Bohras are from the Mustali branch and the Aga Khan’s followers are from the Nizari branch.
By the year 1094, the Ismaili Fatimid Caliphate was essentially under the control of its Sunni Generals and Viziers, though the state nominally was Ismaili Shia (only a minority of the population was Shia, most were Sunni, as a result the army was mostly Sunni and ended up taking effective control of the state). The Ismaili Caliph/Imam’s eldest son Nizar, who would normally be the next imam, was viewed by the Sunni army as too difficult to control so they made the Imam declare his younger son Al-Mustali to be the next imam.
Most religious Ismailis saw this as a Sunni power grab and many left Egypt with Nizar, viewing him as the true imam. The community eventually settled in Central Asia and India and ultimately become the Aga Khanis.
Other Ismailies accepted Al-Mustali as being the previous Imam’s choice as declared him to be the new Caliph/Imam. When Salahuddin eventually took over Egypt, the followers of this branch of Ismailies left Egypt and ended up eventually mostly in India, where they ultimately became the Dawoodi Bohras.