King Mohammed VI of Morocco at the Morocco-GCC (Gulf Cooperation Council) summit in Riyadh, Saudi Arabia on April 20, 2016.
Monarchs attend Islamic Cooperation summit in Turkey
The sultan of Brunei, Hassanal Bolkiah, attends the 13th Organization of Islamic Cooperation summit on April 14, 2016 in Istanbul, Turkey.
Qatar's emir visits Italy and Bosnia
Italy's Prime Minister Matteo Renzi (left) receives the emir of Qatar, Sheikh Tamim bin Hamad al-Thani (right), in Rome on January 28, 2016. / AFP / ALBERTO PIZZOLI
Rulers attend Gulf Cooperation Council summit in Saudi Arabia
King Salman of Saudi Arabia (left) looks on as Sheikh Mohammed bin Rashid Al Maktoum (right), who is ruler of Dubai and also prime minister and vice president of the United Arab Emirates, is greeted by Saudi officials in Riyadh on December 9, 2015.
The emir of Qatar welcomes the president of Turkey
The emir of Qatar, Sheikh Tamim (at left in first photo) and Turkey's president, Recep Tayyip Erdogan (right), walk past a guard of honor on December 2, 2015 in Doha, Qatar.
The emir of Qatar visits Mexico
The president of Mexico, Enrique Peña Nieto (at left in first photo), welcomes the emir of Qatar, Sheikh Tamim bin Hamad al-Thani (right) at the National Palace in Mexico City on November 24, 2015.
Middle East rulers attend South American-Arab summit
Below: Sheikh Mohammed bin Rashid Al Maktoum, who is ruler of Dubai and also prime minister and vice president of the United Arab Emirates, attends the 4th Summit of South American-Arab countries in Riyadh, Saudi Arabia on November 11, 2015.
Jordan's king and Qatar's emir speak at UN
An address (in English) by King Abdullah II of Jordan at the general debate of the 70th Session of the General Assembly of the United Nations on September 28, 2014:
The emir of Qatar visits Turkey
The emir of Qatar, Sheikh Tamim bin Hamad Al Thani (left), meets Turkish president Recep Tayyip Erdogan in Istanbul, Turkey on September 25, 2015.
The emir of Qatar visits Venezuela
The emir of Qatar, Sheikh Tamim bin Hamad bin Khalifa Al Thani (left), is welcomed by Venezuelan president Nicolas Máduro at the Palacio de Miraflores in Caracas on May 15, 2015. (AFP PHOTO/JUAN BARRETO)