The king was addressed as His Majesty (Arabic: صاحب الجلالة).

Under British occupation, the people rebelled and Iraq showed itself a hard land to govern.

In order to establish a pro-British client regime, a dynasty of Hashemite kings from the Hejaz region was established, beginning with Faisal I who was the son of Hussein bin Ali.

As a family originating in the Hejaz, the Hashemites was foreign to Iraq.

The British Government appointed them as Iraq's royal family after a plebiscite in 1921.