Abdullah bin Saud Al Saud (Arabic: عبد الله بن سعود آل سعود, romanized: ʿAbd Allāh bin Suʿūd Āl Suʿūd; died May 1819) was the last ruler of the First Saudi State, from 1814 to 1818,[1] and was executed in Constantinople under the Ottoman Empire.

[8] Rather than engage the Ottomans in open battle, Abdullah decided to attempt to weather the invasion by fortifying his forces in the Najd towns in 1816.

[6] Ibrahim systematically razed Diriyah to the ground and sent many members of the Al Saud clan into captivity in Egypt and Constantinople, the Ottoman Empire.

This was refused and, in May 1819, he and his two supporters were publicly beheaded in the square before Hagia Sophia for their crimes against Islamic holy cities and mosques.

[16] In 1802, during the Wahhabi sack of Karbala, the mausoleum of Husayn ibn Ali was desecrated by the army of Abdullah bin Saud, causing anger and shock in the Muslim world.

The guardian of Islam's religious places was the Turkish-Ottoman Caliph in Constantinople, Mahmud II, who ordered that an Egyptian force be sent to the Arabian Peninsula to defeat Abdullah bin Saud and his allies.