Согласно правилам престолонаследия, шах Ирана из династии Пехлеви должен был исповедовать ислам, его мать должна была быть гражданкой Ирана и мусульманкой. На престол не могли претендовать потомки предыдущей династии Каджаров. Сыновья Реза-шаха от пятой и шестой жен и их потомки по мужской линии, происходившие от Каджаров, были исключены из списка престолонаследия[1].
↑Dareini, Ali Akbar. The rise and fall of the Pahlavi dynasty. — 1999. — С. 446. — ISBN 81-208-1642-0.. — «2. The Shah gives another account for his separation with Fawzia. “For reasons still obscure to medical science, Queen Fawzia bore only one child; thus unfortunately no male heir issued from our marriage. Under the Persian Constitution the crown must pass by direct line of descent to a male heir. This rules out not only my daughter but also my three sisters. The Constitution further stipulates that no one descended from the previous Qajar dynasty is eligible to become king. Since two of my father’s wives were of Qajar blood, my half-brothers who are their sons are ineligible. In fact I had only one brother not related to the Qajar line, and to my sorrow he was to die in an aeroplane crash in 1954. With these limitations it is no wonder that my advisors felt it important for my wife to bear a son. It is true that the Constitution might have been amended, but the dimate of opinion seemed opposed to tampering with the provisions relating to the royal succession. Besides, I was young and, quite apart from the constitutional factor, I wanted more children. When Queen Fawzia went to Egypt on an extended stay, we decided on a divorce.” Please see Mission for My Country His Imperial Majesty Mohammad Reza Shah Pahiavi, Hutchinson and Co. (Publishers) Ltd., London, 1961-1968; pp. 219-220».