Saudi Arabia's King Abdullah bin Abdulaziz al Saud speaks at his private residence in Jeddah, Saudi Arabia, in June. The King has died, according to an announcement on Saudi state TV. He was 90. BRENDAN SMIALOWSKI/AFP/Getty Images
U.S. President Gerald Ford accepts a gift from Prince Abdullah in Washington in July 1976. Abdullah became King of the oil-rich nation, a key U.S. ally in the Middle East, in August 2005. David Hume Kennerly/ Getty Images
Seated from left, Prince Abdullah, U.S. Secretary of State Jim Baker, U.S. President George H.W. Bush and Saudi King Fahd discuss the Gulf crisis in November 1990. Dirck Halstead/The LIFE Images Collection/Getty Images
Iranian President Mohammad Khatami meets Prince Abdullah in December 1997, during a break of the Islamic Conference summit in Tehran, Iran. Abdullah was the highest-ranking Saudi official to visit Tehran since the 1979 Iranian Islamic Revolution. Mohamed Sayyad/Canadian Press/AP
Britain's Queen Elizabeth and Prince Philip meet with Prince Abdullah for lunch at her Scottish residence, Balmoral Castle, in September 1998. Chris Bacon/WPA/AP
Venezuelan President Hugo Chavez hugs Prince Abdullah during a summit in Caracas, Venezuela, in September 2000. OMAR TORRES/AFP/Getty Images
From left, Jordan King Abdullah II, Saudi Prince Abdullah, U.S. President George W. Bush, Egyptian President Hosni Mubarak, Bahrain King Hamad bin Isa Al Khalifa and Palestinian Prime Minister Mahmoud Abbas stand together for a group photo after meeting in Sharm El-Sheikh, Egypt, in June 2003. J. Scott Applewhite/AP
King Abdullah is surrounded by hundreds of Islamic clerics, tribal chiefs and other prominent Saudis before a ceremony bestowing his legitimacy in August 2005. Amr Nabil/AP
The King poses with U.S. President George W. Bush during an economic summit in Washington in November 2008. Ron Sachs/Pool/Getty Images
King Abdullah is escorted by Turkish President Abdullah Gul as Lebanese Prime Minister Najib Mikati, left, walks alongside them during a summit in Mecca, Saudi Arabia, in August 2012. FAYEZ NURELDINE/AFP/GettyImages
The King meets with U.S. President Barack Obama at Rawdat Khurayim, the monarch's desert camp in Saudi Arabia, on March 28. SAUL LOEB/AFP/Getty Images