Born with the royal rank of Mom Chao 'His Serene Highness', he was granted the rank of Phra Ong Chao 'His Highness' by King Vajiralongkorn through a royal decree, making him the first member of the House of Yugala, a cadet branch of the Chakri Dynasty, to receive this honor.

As the grandson of Yugala Dighambara, Prince of Lopburi, and the great-grandson of King Chulalongkorn (Rama V), he belongs to a distinguished lineage.

He attended Bangkok Christian College for his secondary education before earning a degree in Biological Sciences from Macquarie University in Sydney, Australia.

[2] He served as Deputy Director General of the Royal Thai Army Chemical Department and held other significant military positions.

[3][4] In 2019, Prince Chalermsuk was promoted to the rank of General and appointed Honorary Military Officer to the King’s Bodyguard under the Royal Security Command.