 To assuage such doubts, Prince Mongkut wrote a letter to the assembly to make his own case for succeeding to the throne.He also ordered monks in his order to discontinue any practices considered unorthodox or foreign.According to historian David K. Wyatt, who cites an account given by Prince Mongkut to American missionary Dan Beach Bradley about two weeks before Rama III died, the assembly resolved to protect the claims to the throne of Prince Mongkut and his talented younger brother, Prince Chudamani.