Kromma Khun Isaret moved to the Thonburi Palace, where he lived with his mother Queen Sri Suriyendra until her death in 1836.

The prince was pleased and gratified with a nighttime visit to the man-of-war Peacock, during which the men mustered to quarters for naval exercises.

Roberts stated that the prince spoke and wrote the English language with considerable fluency, and his pronunciation was correct.

Kromma Khun Isaret was at the time the heir presumptive to the throne, but the return and claim of his brother Prince Mongkut was stronger.

The popular legend holds that Mongkut's own astrological calculations stated that his brother Prince Isaret also held the "fate to become a king".

Expanding his interests to foreign affairs Pinklao, who was known for his fluency in the English language was able to respond to the letters of John Bowring.

Apart from state affairs, Pinklao was interested in both western and Lao culture, speaking English, drilling his troops in European fashion, singing, dancing, and playing the khene to mor lam music.