Loetlanaphalai, with his concubine Sri Sulalai, fathered Prince Tub ( – later Rama III) in 1787. Prince Itsarasunthon then had a secret affair with his own cousin, Princess Bunrod. In 1801, Rama I then found out that Princess Bunrod had been pregnant for four months and banished her out of the palace to live with her brother. Itsarasunthon, however begged his father to forgive him and the princess was reinstated and became his consort through the negotiation by concubine Khamwaen. Unfortunately, the baby died just after its birth.