Abdullah bin Faisal Al Saud (1831–1889)
His reign witnessed extensive struggle among the members of the Al Saud family which led to turmoil in the region.[9] Following his return to Nejd, Faisal bin Turki managed to reestablish his rule, and during his reign there occurred a rivalry between his sons Abdullah and Saud.[12] Abdullah's forces defeated rebellious governor of Buraida, Abdulaziz Al Ulaiyan, who joined riots in the province of Unaiza in 1848-1849 which is called the battle of Yalima.[12] Abdullah was also instrumental in signing an agreement with Mohammad Al Khalifa, ruler of Bahrain, to continue his annual payments to the Emirate of Najd.[12] William Palgrave, an English priest and traveller, met with heir apparent Abdullah while visiting the region.[13] Palgrave believed that Abdullah wanted it to poison his old father to start his reign before his brother, Saud, would get more power.[6] Sheikh Abdul Rahman (1779–1868) who was the grandson of Sheikh Mohammad ibn Abdul Wahhab and the son of Hasan bin Mohammad publicly announced that people should support Abdullah due to the fact that his succession had been previously established by Imam Faisal bin Turki.[26] Saud won his struggle against Abdullah in the battle of Juda in December 1871, but at the same time a civil war broke out which lasted for more than a decade.[31] Another factor cited by R. Bayly Winder, an expert on the history of Arabia, is that Abdullah tended to appoint non-local administrators to the regions and to his government and made them very powerful.[32] In addition to these factors Abdullah bin Faisal did not have any male offsprings who could support him against the contenders such as his half-brother Saud who had six sons.