[1][2] Although the Prince held a number of posts in the government of his elder brother, King Chulalongkorn, including the post of Commander-in-Chief of the Royal Siamese Army, he is best remembered as the founder of the Thai postal service and the first Field marshal in Royal Siamese Army during King Vajiravudh.

[4] His Royal Highness Prince Bhanurangsi Savangwongse born on 11 January 1860 at the Grand Palace, Bangkok.

When he was 12 years old King Chulalongkorn appointed him as Prince Brother, with a royal ceremony at the Dusit Maha Prasat Throne Hall.

After that, he studied military education at the Bureau of the King's Guard since 1872 and learning the Thai language from Phraya Srisoonthorn Waham (Noi Ajarayangkul) including studying civil service traditions and royal traditions from Prince Mahamala, the Prince Bamrapporapak.

[6] He carried out military service in a special officer rank, with a first lieutenant's uniform in Bureau of the King's Guard when King Chulalongkorn travelled to Singapore (2nd time) and Burma, parts of England throughout India including the rising districts of Siam along the western coast of Malaya.