Wang Na. Issaresrajanusorn Throne Hall was built on the order of King Pinklao, the Fourth Reign’s second king, to replace an old Chinese-style mansion.This two-storey Western-style mansion served as the living quarters of King Pinklao. Its interior was decorated in a Western fashion.Even the second king’s wooden bed was imported from Europe.After King Pinklao passed away, his cremated bones were enshrined in the main hall on the order of King Rama IV.