Thailand's King Vajiralongkorn assumed the throne following the death of his father in 2016.

His formal coronation took place Saturday, with celebrations expected to last until Monday. The 66-year-old is the 10th member of the Chakri dynasty, which has ruled Thailand since Rama I took the throne in 1782.

The royal family of Thailand sits on the steps of Bangkok's Chitralda Palace in 1955. King Bhumibol Adulyadej and Queen Sirikit are pictured with their children. Crown Prince Vajiralongkorn is on the left, next to Princess Ubol Ratana.
The royal family of Thailand sits on the steps of Bangkok's Chitralda Palace in 1955. King Bhumibol Adulyadej and Queen Sirikit are pictured with their children. Crown Prince Vajiralongkorn is on the left, next to Princess Ubol Ratana.
AP Photo
Vajiralongkorn sits with his mother, Queen Sirikit, in 1960. He's the only son of King Bhumibol Adulyadej.
Vajiralongkorn sits with his mother, Queen Sirikit, in 1960. He's the only son of King Bhumibol Adulyadej.
John Dominis/The LIFE Picture Collection/Getty Images
Vajiralongkorn arrives in London in 1966. He was educated in the United Kingdom and Australia before officially being declared crown prince and heir apparent in 1972.
Vajiralongkorn arrives in London in 1966. He was educated in the United Kingdom and Australia before officially being declared crown prince and heir apparent in 1972.
Dennis Oulds/Hulton Royals Collection/Getty Images
Vajiralongkorn and his parents take a photo at their private residence in Sunninghill, England, in 1966.
Vajiralongkorn and his parents take a photo at their private residence in Sunninghill, England, in 1966.
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This undated photo shows Vajiralongkorn with his father.
This undated photo shows Vajiralongkorn with his father.
Eric-Paul-Pierre Pasquier/Gamma-Rapho via Getty Images
Vajiralongkorn speaks at a news conference while visiting a hospital in Thailand's Kalasin province in 1987.
Vajiralongkorn speaks at a news conference while visiting a hospital in Thailand's Kalasin province in 1987.
Robert Nickelsberg/The LIFE Images Collection/Getty Images
King Bhumibol is accompanied by his son during his 72nd birthday celebration in 1999.
King Bhumibol is accompanied by his son during his 72nd birthday celebration in 1999.
Emmanuel Dunand/AFP/Getty Images
Vajiralongkorn and his parents stand on the balcony of Anantasamakom Throne Hall in 1999.
Vajiralongkorn and his parents stand on the balcony of Anantasamakom Throne Hall in 1999.
Pornchai Kittiwongsakul/AFP/Getty Images
Vajiralongkorn and his parents are seen together in Bangkok in 2000.
Vajiralongkorn and his parents are seen together in Bangkok in 2000.
Pornchai Kittiwongsakul/AFP/Getty Images
Vajiralongkorn sits next to his third wife, Srirasmi, in 2006. They are now divorced.
Vajiralongkorn sits next to his third wife, Srirasmi, in 2006. They are now divorced.
Pornchai Kittiwongsakul/AFP/Getty Images
Vajiralongkorn arrives at an airport to greet foreign monarchs arriving in Thailand in 2006.
Vajiralongkorn arrives at an airport to greet foreign monarchs arriving in Thailand in 2006.
Paula Bronstein/Getty Images
Vajiralongkorn reads a statement during the opening ceremony of the Universiade, an international sports competition that was held in Bangkok in 2007.
Vajiralongkorn reads a statement during the opening ceremony of the Universiade, an international sports competition that was held in Bangkok in 2007.
Pornchai Kittiwongsakul/AFP/Getty Images
Vajiralongkorn is photographed in Paris in 2007.
Vajiralongkorn is photographed in Paris in 2007.
Pierre Hounsfield/Gamma-Rapho via Getty Images
Vajiralongkorn rides a bicycle in Bangkok in 2015.
Vajiralongkorn rides a bicycle in Bangkok in 2015.
Wasawat Lukharang/NurPhoto via Getty Images
Vajiralongkorn attends a ceremony in Bangkok in 2016.
Vajiralongkorn attends a ceremony in Bangkok in 2016.
Dario Pignatelli/Bloomberg via Getty Images
Vajiralongkorn <a href="index.php?page=&url=https%3A%2F%2Fwww.cnn.com%2F2019%2F05%2F01%2Fasia%2Fthailand-royals-queen-intl%2Findex.html" target="_blank">married his fourth wife,</a> Gen. Suthida Vajiralongkorn Na Ayudhya, in May 2019. It was just days before his formal coronation.
Vajiralongkorn married his fourth wife, Gen. Suthida Vajiralongkorn Na Ayudhya, in May 2019. It was just days before his formal coronation.
Bureau of the Royal Household via AP
Vajiralongkorn is carried in a golden palanquin during his coronation procession in Bangkok in May 2019.
Vajiralongkorn is carried in a golden palanquin during his coronation procession in Bangkok in May 2019.
Handout/Thailand Department of Public Relations via AP