Since King Rama IV’s coronation in 1851, the crown has been worn by monarchs during the ceremony (although they never do so again).

King Rama IV of Siam predicted a total solar eclipse with stunning precision, but in an indirect way, viewing the eclipse led to the king's death six weeks later.

However, King Rama IV said "Walawichani", in the Pali language, refers more to a whisk-like item, made from the hair of a yak. The king, therefore, ordered the whisk to be made.

Rama V was 15 years old when his father, Rama IV (the monarch portrayed in “The King and I”), died of malaria after a trip to the Malay Peninsula to view an eclipse in 1868.

The king, also known as Rama IV, was 47 when he took the throne after the death of his half-brother.

The stone was allegedly discovered in Sukhothai in 1833 by Prince Mongkut, who went on to become King Rama IV, the leader portrayed in the Rodgers and Hammerstein musical The King and I.

It has been 25 years since National Artist Somtow Sucharitkul was commissioned to compose an opera based on the much-loved play Madanabadha by King Vajiravudh, Rama VI. The play is dedicated to ...

In the reign of King Rama III, the original Anantanagaraj, featuring a seven-headed naga prow, was built. During the reign of King Rama IV, seven new barges were built.

Prince Pradit created sculptures of all of the past kings of Siam for the Royal Pantheon at the Grand Palace at the order of King Mongkut, Rama IV, a commission he completed during the reign of King ...

The much-loved musical play and film tells the real-life story of the tempestuous relationship between the King Rama IV of Siam and Anna Leonowens.