The Thai title system originated from the Sardinian system and was influenced by Cambodia and Myanmar, becoming increasingly complex over time. During the Sukhothai period, there were already noble titles, and during the Ayutthaya period, Khmer titles were borrowed, forming a fixed spelling and usage method in the later period. During the Bangkok dynasty, the titles of nobility were further increased. The title system is closely related to the economic foundation, and the land ownership system is its basis for existence. In the mid-19th century, Thailand integrated into the capitalist trading system, the feudal society disintegrated, and the system of titles disappeared.

1、 The Beginning Period of the Title System: The Establishment of the Title System

The origin of the Thai title system can be traced back to the Sukhothai Dynasty to the early Ayutthaya period, during which the types and titles of titles began to emerge. The early title system included Kun, Wanhu, Qianhu, etc. These title names may have originated from independent creation or borrowing from Khmer titles. During the Sukhothai period, the king was referred to as Kun, and officials were given titles such as Wanhu and Qianhu, which may have been influenced by the ancient feudal social system in China. In the early days of Ayutthaya, the title system included titles such as Piye and Ongye, which were prefixed with the Khmer word Oog, indicating the influence of Khmer on the Thai title system. The fiefdom system gradually matured during this period, with the king directly occupying land and the rest being granted to lords. The number of fiefs was not fixed, reflecting a rough land control system. The feudal system and title system in Thailand were not yet perfect during this period, but the embryonic form of the title system had already been formed.

2、 The period of improvement of the title system: the increase of titles and the institutionalization of ranks

The system of titles in Thai history underwent a period of refinement from the mid Ayutthaya period to the end of the 19th century, during which the spelling and usage of the Phrajaa title were determined, and two higher titles, Cawphrajaa and Somded Cawphrajaa, were added. During the reign of King Chulalongkorn, Thai noble titles were divided into different levels such as Songde Chao Phraya, Chao Phraya, Phraya, Pa, Luang, Kun, etc. High ranking nobles omitted the word "Oog" when referring to lower ranking nobles, forming a modern Thai noble title sequence. The title of Phajaa is rare in 17th century European literature and may refer to a prince of the Siamese vassal state or a relative of the Cambodian king. In the early 18th century, Phrajaa replaced Oogjaa to hold the title of Chief Minister, while Chaw Phrajaa replaced Phajaa to hold a higher rank. The title of Somde Cawphrajaa is usually granted to nobles equivalent to the rank of prince, and the title of Shitian is equivalent to that of a senior prince.

3、 Termination period of the title system

In the late 19th and mid-20th centuries, Thailand faced invasion from Western colonizers and was forced to integrate into the capitalist trading system, leading to the disintegration of feudal society and the abolition of the Sardinian system, and the loss of economic and social foundations for the system of titles. After the establishment of Thailand's constitutional monarchy, royal titles were retained and ordinary noble titles were no longer used. The change in Thailand's title system is a product of the disintegration of the feudal dependency system. The infiltration of Western powers deepened, and Thailand accelerated its integration into the capitalist world. The feudal system constrained the perception of the ruled, and reforms began under King Rama IV until the establishment of a constitutional monarchy in 1932. King Rama IV abolished unpaid labor, King Rama V implemented modernization reforms, King Rama VI continued to learn from the West, and King Rama VII promulgated the Civil Service Regulations. After the June 24 Coup of 1932, Thailand became a constitutional monarchy and abolished ordinary noble titles. Thai scholar Praenor believes that the restriction on the number of senior titles has led to conflicts between the royal family and the nobility, prompting the abolition of the title system. In 1941, the Luang Phibun government issued a proclamation to cancel the title, and in 1944, Prime Minister Naw Kuan Apawang revoked the decree and allowed the restoration of the title. After Luang Phibun regained the position of Prime Minister in 1948, the title policy returned, but due to multiple changes in government and unstable political situation, the title indirectly disappeared.

4、 Conclusion

The Thai title system originated from the Sardina system and developed with national wars, cultural exchanges, and ethnic integration. It absorbed titles from neighboring countries and formed a title system with Thai characteristics. The characteristic of the title system is that the new title has a higher status than the old title. During the reign of King Chulalongkorn, the rank of titles was clearly defined and closely related to the king and royal family, reflecting feudal monarchy and playing an important role in maintaining social stability. With the development of social productivity and the impact of Western culture, the feudal system disintegrated and the system of titles gradually fell silent. This article provides a basic overview of the title system in Thailand, pointing out that further research is needed and looking forward to more scholars participating in the discussion.