One holder of this office hired the Greek rascal Constantine Phaulkon as his prime minister, only to
One holder of this office hired the Greek rascal Constantine Phaulkon as his prime minister, only to see Phaulkon intrigue with Louis XIV against him. In 1946, the person who held this position was found shot to death in his bed, with the killer still unknown. This title was reduced in official power by the Promoters Revolution, and another holder of this office wrote to James Buchanan to offer elephants for help in American agriculture. The current Chakri Dynasty member in this office has endorsed several military coups. For 10 points, name this post held since 1782 by nine people named Rama, who ruled the only continuously independent Southeast Asian country.
One holder of this office hired the Greek rascal Constantine Phaulkon as his prime minister, only to see Phaulkon intrigue with Louis XIV against him.
King of Thailand [I guess you can accept King of Siam from cute and/or clever people]