King Mohammed VI of Morocco at the Morocco-GCC (Gulf Cooperation Council) summit in Riyadh, Saudi Arabia on April 20, 2016.
Bahrain's King Hamad bin Isa Al-Khalifa (left) with Russian president Vladimir Putin during a meeting in Sochi, Russia on February 8, 2016.
Jordan's King Abdullah II and his wife, Queen Rania, observe a moment of silence during a memorial service today marking the tenth anniversary of the bombings at three hotels in Amman, Jordan that killed dozens of people and wounded more than 100.
French president François Hollande (right) welcomes King Hamad of Bahrain for a meeting at the presidential Élysée Palace in Paris on September 8, 2015.
Britain's Queen Elizabeth II, King Hamad of Bahrain, and Britain's Prince Andrew, Duke of York on day 3 of the Royal Windsor Horse Show on May 15, 2015 in Windsor, England.
Jordan's King Abdullah II (center) and Kuwait's emir Sheikh Sabah al-Ahmad al-Sabah (center-right) arrive for the Egypt Economic Development conference on March 13, 2015 in Sharm el-Sheikh, Egypt. (Photos by KHALED DESOUKI/AFP/Getty Images)
King Hamad of Bahrain (left) and King Abdullah II of Jordan (right) review an honor guard during an official reception for King Hamad on February 9, 2015 in Amman, Jordan. The king of Bahrain made a short visit to Jordan to discuss the latest developments in the Middle East with King Abdullah. (Photo by Jordan Pix/ Getty Images)
Pope Francis (right) meets King Hamad of Bahrain during an audience at the Apostolic Palace on May 19, 2014 in Vatican City, Vatican. On his upcoming trip to Jordan, West Bank and Israel between May 24-26, Pope Francis will visit sites important to Christians, Jews and Muslims alike. (Photo by Vatican Pool/Getty Images)