What kind of royalty does Hussa bint Ahmed Al Sudairi and Fahd of Saudi Arabia have in common?
Fahd of Saudi Arabia: Fahd bin Abdulaziz Al Saud, Custodian of the Two Holy Mosques (Arabic: فهد بن عبد العزيز آل سعود‎ ‎ "Fahd ibn ‘Abd al-‘Azīz Āl Sa‘ūd "; 1921 – 1 August 2005) was King of Saudi Arabia from 1982 to 2005.
i don't know