Admiral Prince Abhakara Kiartivongse, Prince of Chumphon, (19 December 1880 – 19 May 1923), (Thai: พระองค์เจ้าอาภากรเกียรติวงศ์, rtgs: Phra Ong Chao Aphakon Kiattiwong, Full title in Thai: พระเจ้าบรมวงศ์เธอ พระองค์เจ้าอาภากรเกียรติวงศ์ กรมหลวงชุมพรเขตอุดมศักดิ์), was the 28th child of King Chulalongkorn
His familiar other names, Sadej Tia ("Royal Father") or Doctor Phon or Prince of Chumphon, will command deep respect from Thai people from navy officers to rural villagers.
He spent his early years studying Naval warfare in England. He returned to Siam to serve in the Royal Siamese Navy and contributed significantly to the advancement and modernization of the Navy. In 1922 he saw that Sattahip Bay was a strategic place for the establishment a Naval base and offered Royal land in Sattahip in order to build the present-day naval facilities. In honor of his contributions, the Prince was proclaimed "The Father of Royal Thai Navy". The Royal Prince Admiral went to England to personally negotiate the purchase of the Phra Ruang destroyer, one of the early ships of the Royal Thai Navy and command the ship during its subsequent voyage from England to Thailand.
In addition to his career in the navy, Prince of Chumphon studied medicine. He was particularly interested in the use of herbal medicine in treating his patients. As "Doctor Phon", he provided medical treatment to people of all classes and races.
The Prince was also well recognized in the field of supernatural arts. His reputation on magic was such that he has been regarded as one of the "108 deities in heavens". Many worshippers proclaim themselves to be his "children" or followers and pray to him for fulfillment of their wishes.
Prince Abhakara Kiartivongse also have Muay Thai skill. In Vajiravudh kingship, He trained Muay Thai boxers whether it is Tub Jumkor, Young Hantaley, Too Thaiprasert and Poon Sakda who is Nakhon Ratchasima people.1880–1910: His Royal Highness Prince Abhakara Kiartivongse
1910–1920: His Royal Highness Prince Abhakara Kiartivongse, the Prince Brother
1920–1923: His Royal Highness Prince Abhakara Kiartivongse, Prince of Chumphon