Khom Sabat Khlon Lamphong

Khom Sabat Khlon Lamphong ขอมสบาดโขลญลำพง
Ruler of Si Satchanalai–Sukhothai
Ruler of Si Satchanalai–Sukhothai
Reign	Early 13th century–1238
Predecessor	Sri Naw Nam Thum
Successor	Si Inthrathit
King of Suphannaphum
Reign	Mid 13th century
Predecessor	Vacant (Title earlier held by Uthong I)
Successor	Uthong III
Died	Late 13th century Suphan Buri
Consort	Princess of Mueang Tri Trueng
Issue	Uthong III
House	Suphannaphum dynasty

Khom Sabat Khlon Lamphong (Thai: ขอมสบาดโขลญลำพง) was a 13th-century ruler of Sukhothai and Si Satchanalai, known almost entirely from the Wat Si Chum Inscription. He succeeded Sri Naw Nam Thum and was deposed in 1238 by Si Inthrathit of Mueang Bang Yang acting with Pha Mueang of Mueang Rat, after which Si Inthrathit took the throne.

His identity is unsettled, and the question turns largely on how his name is read. Earlier scholarship treated it as an official title and took him for a Khmer noble appointed by Angkor to administer the region. More recent work analyses it instead as a descriptive epithet referring to a physical condition, and proposes that he was a kinsman of Sri Naw Nam Thum whose political affiliations ran to Lavo rather than to Angkor. On the epithet reading he has been identified with the legendary Thao Saen Pom, and, by a separate argument from the Legend of Sawankhalok, with Phra Ruang III, an elder brother of Si Inthrathit.

The overthrow of 1238 has conventionally been treated as the founding moment of the early Siamese polity, though several records indicate that Siamese rulers had exercised authority over Sukhothai before that date. If the identifications with Thao Saen Pom and Phra Ruang III are accepted, the events of 1238 become a contest within a single family rather than the expulsion of a foreign governor.

Name

The name has been analysed through the Surin Khmer dialect, in which it reads as a description of a person marked by numerous nodules on the skin rather than as an official designation. On this analysis it divides into three elements. Khom denotes a Khom person. Sabat Khlon combines sabat, reconstructed in Old Siamese–Khmer phonology as sbaek (ซแบ๊ย์ก), "skin" or "surface", with khlon, reconstructed as khluon (คลวน) or khluan (คลูน), "body" or "form", giving the sense "skin of the body". Lamphong, reconstructed as lampuong (ลำป็วง), carries either the sense of a protrusion or small swelling on a surface, or the name of a climbing plant bearing small round edible fruits, dark green when unripe and black when ripe.

Read together, the elements yield an epithet describing a man whose skin was covered in small swellings, rather than a rank or office. That result carries two consequences. It removes the principal ground for reading the name as an Angkorian title, since on the analysis no element of it denotes a rank; and it corresponds closely to the epithet of Thao Saen Pom, "lord of a hundred thousand nodules", which is the basis of the proposed identification between the two figures. The referent of Khom (ขอม) is itself contested and does not reliably denote a Khmer identity, so the first element carries less weight as an ethnic marker than the older reading assumed. Chris Baker and Pasuk Phongpaichit, writing in 2017, give the phrase as a Khmer-style title rather than an epithet, and spell it khom sabatkhlon lamphong.

Reign and overthrow

Khom Sabat Khlon Lamphong succeeded Sri Naw Nam Thum as ruler of Sukhothai and Si Satchanalai, either on the latter's death or by displacing him; the sources do not settle which. Nothing survives of his administration beyond the fact of his holding the two towns together, an arrangement his predecessor had also maintained. In Baker and Pasuk's rendering the inscription describes him as a "valiant" person holding a Khmer-style title.

In 1238 he was deposed by a coalition led by Si Inthrathit, ruler of Mueang Bang Yang and son of Candraraja, acting with Pha Mueang, a Tai Lueang (ไทเลือง) ruler of Mueang Rat. Chit Phumisak read the inscription as setting the campaign out in stages, with the two allies advancing by separate routes, a counter-attack by Khom Sabat Khlon Lamphong to retake Si Satchanalai, and a final action in which they mustered, performed a rite riding a single elephant's neck together, and caught him between them. He further read the phrase describing the outcome as ไพร่พง rather than ไพร่พัง, giving the sense that Khom Sabat Khlon Lamphong withdrew into the forest rather than that his force was broken — an outcome closer to a rival driven out than to an occupying garrison destroyed.

Si Inthrathit was enthroned in his place, and the episode has conventionally been read in historiography as the formal inception of the early Siamese polity. That reading has been qualified, since several records place Siamese authority over Sukhothai before 1238. On that view 1238 marks a change of ruler within a region already under Siamese control rather than the beginning of Siamese rule there.

Identity

Almost nothing is recorded of him outside the account of his defeat, so his identity has been argued from his name and from figures in other traditions who resemble him. Three lines of argument run in parallel: one concerns whether he was an Angkorian appointee or a local ruler, and two propose that he is the same man as a figure known under another name. The three rest on different kinds of evidence and are not mutually dependent.

Angkorian official or local ruler

The older interpretation held that he was a Khmer noble sent out from Angkor to govern the region on its behalf. It rested on two supports: the reading of his name as an official title, and the wider assumption that the central and northern basins were administered from Angkor before the rise of Sukhothai. On that reading his removal in 1238 was the expulsion of a foreign governor, which is what made the date serviceable as a founding moment. In the reading of Griswold and Prasert na Nagara he becomes the commander of a Khmer garrison, and the events of 1238 the liberation of Sukhothai from Khmer suzerainty and the establishment of an independent kingdom under a Tai dynasty.

More recent work has withdrawn both supports. The etymological analysis finds no element of rank in the name, and the term Khom is not a reliable ethnic marker. In its place he is treated as a local figure — proposed as a kinsman of Sri Naw Nam Thum — who nonetheless maintained political affiliations with Lavo, itself under the influence of the Angkorian Mahidharapura line by the 1180s. Baker and Pasuk reach the same conclusion from another direction, holding that the ethnic framing and the idea of liberation were imported from a later era, and reading the inscription as recording a victory by one local lord associated with Angkor over another holding a Khmer title. Pha Mueang, the victor, had himself received a title, a regalia sword and a princess in marriage from the ruler at Angkor.

Thao Saen Pom

The correspondence between his name and the epithet of Thao Saen Pom has led to the proposal that the two are one person recorded in different traditions, the inscription preserving the Khmer form of the epithet and the chronicles the Thai. Thao Saen Pom appears in legend as a poor cultivator whose body was covered in nodules, who married a Tai Yuan princess of Mueang Tri Trueng.

The same tradition takes him south afterwards to occupy the vacant throne of Suphannaphum about the middle of the 13th century. His successor Uthong III is said to have consolidated authority in the region, and a marriage between Uthong III's daughter and Uthong (V) linked the line to Ayodhya; the house descending from it is generally called the Suphannaphum dynasty. On this reconstruction his defeat at Sukhothai was not the end of his career but the point at which it moved to the Chao Phraya basin.

Phra Ruang III

A separate argument connects him to Phra Ruang III. The Legend of Sawankhalok records that Si Inthrathit, called Phra Ruang IV, had an elder brother also styled Phra Ruang. While Si Inthrathit was placed by their father Candraraja at Mueang Bang Yang, this elder brother was sent to rule Mueang Fang (เมืองฝาง), commonly identified with Sawangkaburi, which lies in the same area as the Mueang Tri Trueng of the Thao Saen Pom tradition.

Taken together, the three identifications would make Khom Sabat Khlon Lamphong, Thao Saen Pom and Phra Ruang III a single man, and the alliance of Si Inthrathit and Pha Mueang that ended his rule a contest between brothers over a shared inheritance rather than a war against an outside power. The identification among the three remains disputed, and each of the three links rests on a different kind of evidence — etymological, legendary and chronicle-based — so that accepting one does not require accepting the others.