Bani Khalid
When the Ottomans invaded Arabia and overthrew the Al Saud in 1818, they conquered al-Hasa, al-Qatif and reinstated members of the Al 'Uray'ir as rulers of the region. The Bani Khalid were no longer the potent military force they once were at this time, and tribes such as the Ajman, the Dawasir, Subay' and Mutayr began encroaching on the Bani Khalid's desert territories. They were also beset by internal quarrels over leadership. Though the Bani Khalid were able to forge an alliance with the 'Anizzah tribe in this period, they were eventually defeated by an alliance of several tribes along with the Al Saud, who had reestablished their rule in Riyadh in 1823. A battle with an alliance led by the Mutayr and 'Ajman tribes in 1823, and another battle with the Subay' and the Al Saud in 1830, brought the rule of the Bani Khalid to a close. The Ottomans appointed a governor from Bani Khalid over al-Hasa once more in 1874, but his rule was also short-lived.