Qatar

The rule of the State is hereditary in the family of Al Thani and in the line of the male descendants of Hamad Bin Khalifa Bin Hamad Bin Abdullah Bin Jassim. The rule shall be inherited by the son named as Heir Apparent by the Emir.
In the case that there is no such son, the prerogatives of rule shall pass to the member of the family named by the Emir as Heir Apparent. In this case, his male descendants shall inherit the rule. The provisions of the rule of the State and accession shall be determined by a special law that shall be issued within a year commencing as from the date of coming into force of this Constitution. This law shall have the power of the Constitution. (Art. 8)

The Emir shall, by an Emiri Order, appoint an Heir Apparent after consultation with the members of the Ruling Family and the people of wisdom (Ahal Alhal wal agd) in the State. The Heir Apparent must be a Muslim of a Qatari Muslim Mother. (Art. 9)

The Emir is the head of State. His person shall be inviolable and he must be respected by all. (Art. 64)