Ngoenyang

Hiran Nakhon Ngoenyang (Northern Thai: ᩉᩥᩁᩢᨬ᩠ᨬᨶᨣᩬᩁᨦᩮᩥ᩠ᨶᨿᩣ᩠ᨦ; Thai: หิรัญนครเงินยาง) was an early mueang or polity of the Tai Yuan people that flourished between the 7th and 13th centuries CE in the upper Mekong basin. Known by several names in historical sources, including Jayavaranagara (ชยวรนคร), Chiang Lao (เมืองเชียงลาว),^[1] Hiraṇyanagara Ngoenyang Chiang Saen (หิรัญญนครเงินยางเชียงแสน),^[2] Nagarayāṅgapura (นครยางคปุระ),^[3] and Thasai Ngoenyang (เมืองท่าทรายเงินยาง).^[4] It emerged in the aftermath of the fall of the Yonok Kingdom and developed into a significant regional center in what is now northern Thailand.^[5]

The political and urban center of Hiran Nakhon Ngoenyang was located at the site of present-day Wiang Phang Kham in Mae Sai District, Chiang Rai Province, Thailand.^[5] The settlement was originally founded under the name Hiran and later expanded into a larger fortified city, after which it became known as Ngoenyang. Archaeological evidence indicates that this transformation involved the northward expansion of the original settlement.^[5][6]

Throughout its history, Ngoenyang functioned within a mandala-style political system characteristic of mainland Southeast Asia, exercising influence over a network of allied and subordinate mueang through dynastic ties, military power, and ritual authority. The polity reached its historical culmination under King Mangrai, the 25th ruler of Ngoenyang, who founded Chiang Rai and later established the Lan Na Kingdom in the late 13th century, marking the transition from the Ngoenyang polity to a new regional kingdom.

Following the collapse of the Yonok Kingdom as a result of a severe earthquake in the 6th century, the remaining settlements consolidated into an alliance and relocated the principal political center to Wiang Prueksa, which was subsequently governed by a succession of sixteen rulers.^[7]: 105 Thereafter, Tai Yuan people of Wiang Prueksa invited Lao Chakkaraj, a head of the Lawa people from Doi Tung, to became their new ruler.^{[8]: 53–4} After ascending the throne, Lao Chakkaraj reconstructed the city, and established it as his new chief center under the name "Hiran Nakhon" in 638.^[5] He also rebuilt Mueang Fang and later founded new cities that became Chiang Rai and Chiang Khong.^{[9]: 244–5}

During the early reign of Lao Chakkaraj, the polity of Ngoenyang comprised 57 cities,^{[9]: 241–3} with four additional regional centers besides Hiran–Ngoenyang: Mueang Fang, north of modern Chiang Mai province; Mong Hsat in present-day Shan State, Myanmar; Mueang Hang Rung Rung (เมืองหางรังรุ้ง) in modern Hot district of Chiang Mai province; and Mueang Jawad Noi (เมืองจวาดน้อย/สาดน้อย) in present-day Mueang Chiang Mai district.^[9]: 245 The northernmost extent of his polity was Mong Yawng, where he appointed one of his sons as ruler,^[9]: 247 while the eastern boundary adjoined Vieng Phouka, ruled by his uncle, whose daughter later married Lao Kao Kaeo Ma Mueang, youngest son of Lao Chakkaraj.^[9]: 257

In 662, the southern part in the Ping River Basin was split off and became the Haripuñjaya Kingdom, ruled by Queen Camadevi of Lavo. After the end of Lao Chakkaraj's reign in 759, his three sons ruled separate polities independently, without interference in each other’s affairs.^[1]: 7 This division fragmented the polity into three parts: the eastern part, with its seat at Chiang Khong, ruled by the eldest son Lao Khob (ลาวคอบ); the northern part, centered at Mong Yawng, ruled by the middle son Lao Chang (ลาวช้าง); and the youngest son, Lao Kao Kaeo Ma Mueang, succeeded his father at Hiran–Ngoenyang.^[9]: 247

Because the text preserved in the Chronicle of Chiang Saen directly identifies the city of Ngoenyang with modern Chiang Saen, this interpretation has previously been emphasized.^[2] However, the location indicated in this legend contrasts with several other textual traditions. The Nan Chronicle places Ngoenyang at Ta Sai (ท่าทราย) in Mae Sai District; The Chiang Mai Chronicle situates it near the Sai River;^[1] and the Phayao Chronicle records that during the reign of Lao Khiang, the city of Yang Sai (ยางสาย)—his royal seat—was expanded and it was located at the foothills of Doi Tung in Mae Sai District.^[10] Taken together, these accounts suggest that Ngoenyang was most likely located in the vicinity of Doi Tung, while Hiran can be more confidently identified with modern Mae Sai. This conclusion is consistent with archaeological research conducted by Worasit Ophap at Wiang Phang Kham, an ancient city in Mae Sai district. His survey found that the site is enclosed by an earthen embankment that divides the settlement into two sections, indicating a later expansion of the city.^[11] The site is located in the Doi Wao–Doi Kha–Doi Pa Lao (ดอยเวา–ดอยคา–ดอยป่าเลา) area, which lies along the same mountain rage as Doi Tung. Wiang Phang Kham should therefore be identified as the same city as the city of Ngoenyang.^[5][6] Nevertheless, this identification remains disputed.^[5]

Approximately a century after the conventionally accepted founding of the Tai Yuan polity of Ngoenyang, a parallel process of political consolidation unfolded to the north in the region corresponding to present-day Yunnan. During this period, a confederation known as the six zhao (六詔; Luh zhao), comprising six regional lordships, gradually coalesced. Contemporary and retrospective sources indicate that five of these lordships were constituted, at least in part, by Tai-speaking Lao or Lao-affiliated populations.^{[12]: 222–3} This confederative arrangement culminated in 738 with the establishment of the mandala-style kingdom of Nanzhao, which subsequently emerged as a dominant regional power in southwestern China and mainland Southeast Asia and maintained its political primacy until its dissolution in 902.^[13]: 103

Although no extant historical records explicitly document direct political or diplomatic engagement between Nanzhao and either the Tai Yuan kingdom of Ngoenyang or the Lao muang of Muang Sua, a constellation of indirect indicators suggests that some degree of contact, interaction, or structural influence was likely. By the 9th century, Nanzhao had developed into a territorially expansive polity, extending approximately 600–700 miles from north to south.^[12]: 237 Its expansionary strategies were not limited to military coercion but also relied upon the systematic cultivation of political alliances, including marriage alliances.^{[12]: 238, 245–6} In this context, the 9th-century Chinese ethnographic and geographic text Man Shu (蛮书) records that Nanzhao’s sphere of influence expanded southward and southwestward along major river systems, through which political and military power was projected into the territories of numerous groups collectively designated as the Southern Barbarians (南方诸蛮).

Further evidence for Nanzhao’s engagement with Tai-speaking elites is provided by the historical prominence of the Nùng clan, a Tai-speaking aristocratic lineage based primarily in Guangxi, to the east of the Nanzhao heartland. Scholarly reconstructions suggest that the Nung maintained sustained political and military relations with Nanzhao for at least a century prior to the mid-11th century, when their leader Nong Zhigao, who rebelled against the Song dynasty, rose to prominence during the transitional period between Nanzhao and its successor polity, the Dali Kingdom.^[12]: 246

Chinese historical sources provide divergent accounts of Nong Zhigao’s ultimate fate. The Zizhi Tongjian records that he was executed by the ruler of Dali and that his severed head was presented to the Song court, whereas the Song Shi acknowledges uncertainty regarding the circumstances of his death.^[14]: 261 In parallel, a substantial corpus of oral tradition and popular historiography asserts that Nong Zhigao escaped southward into what is now northern Thailand, where he is venerated as an ancestral figure by various Tai-speaking communities,^{[15]: 7–9} who, among other Tais, identify themselves as descendants or cultural inheritors of his movement.^[14]: 268

Several local historiographical traditions describe a series of conflicts among Tai mueang polities in the middle Mekong basin during the 12th century.^[16] According to these accounts, Ngoenyang was subjected to invasions by neighboring powers, notably Mueang Kaew Prakan (เมืองแกวประกัน) and Candrapuri. Mueang Kaew Prakan is commonly identified with Xiangkhouang (Muang Phuan)^{[17][18]: 126} and is thought to have been associated with the Tai Kao^[16]: 263 or to have been significantly influenced by the Viet.^[16]: 262 Candrapuri, meanwhile, is generally identified with the site of modern Vientiane.^[8]: 78

The sources further relate that the invading forces were ultimately repelled by the troops of Ngoenyang under the leadership of Chueang. Following the successful defense, Chueang initiated a series of counteroffensives that resulted in the subjugation and annexation of several surrounding mueang.^{[1]: 9–11 [8]: 78–9} In order to consolidate control over these newly conquered territories, Chueang appointed his sons and close relatives as rulers, thereby extending Ngoenyang’s political influence through dynastic governance.^{[8]: 82–3} The appointments are recorded as follows: Chueang III was installed as ruler of Muang Phuan;^[8]: 82 Lao Pao (ลาวพาว) was appointed to govern Candrapuri;^[8]: 85 Khun Kham Roi (ขุนคำร้อย) was placed in authority over Chiang Rai;^[8]: 82 Lao Bao (ลาวบาว; also known as Kham Hao คำห้าว) was assigned to rule Muang Sua;^[19] Khun Phaeng (ขุนแพง) was installed as ruler of Phayao;^[19] and Sam Chum Saeng (สามชุมแสง) became ruler of the Nan Kingdom.^[19] Chueang’s eldest son, Lao Ngoen Rueang, succeeded him as ruler of Ngoenyang,^[8]: 85 while Chueang himself reportedly relocated to govern Chiang Hung in 1180,^[20] From this base, Chueang is further said to have launched a military campaign against Chiang Tung, the principal center of the Tai Khün (Khoen) kingdom.^[21]

Following the conclusion of Chueang’s reign, the polities under his lineage developed into autonomous mueang, each exercising independent authority while maintaining dynastic and ritual ties to one another.^{[18]: 122, 130} This configuration closely resembles the mandala model of political organization characteristic of mainland Southeast Asia, in which power was diffused through overlapping spheres of influence rather than centralized territorial sovereignty.

A pivotal transformation occurred in 1262 when Mangrai ascended the throne as the 25th ruler of Ngoenyang Chiang Lao. Visionary and ambitious, he sought to unify the smaller principalities scattered across the northern region.^{[18]: 130 [22]: 208–9} Upon his enthronement, Mangrai founded the city of Chiang Rai, designating it as his new capital. This act marked the end of the Lao Dynasty of Ngoenyang Chiang Lao and the beginning of the Mangrai dynasty, which later became the foundation of the Lan Na Kingdom.^{[18]: 130 [23]}

Two distinct versions of the Hiran Ngoenyang dynastic lineage are preserved in the historical tradition. The first, recorded in the The Chiang Mai Chronicle, identifies Mae Sai and Wiang Phang Kham as the principal royal seats. The second, presented in the Chronicle of Chiang Saen, asserts that Chiang Saen itself functioned as the dynastic center and offers a somewhat different sequence of rulers, with several reigns overlapping chronologically with those listed in the The Chiang Mai Chronicle.^[5] To date, no comparative study has systematically examined these two accounts to determine whether they describe a single dynasty from differing perspectives or represent parallel, contemporaneous dynasties.

With regard to the issue under discussion, the first eight monarchs recorded in both sources correspond closely in nomenclature, regnal periods, and chronological sequence. A notable divergence, however, appears from the 9th ruler onward. The Chiang Mai Chronicle identifies the ninth ruler, Lao Khiang, as having relocated the political center and expanded earlier settlements, thereby establishing Ngoenyang as a new administrative hub. By contrast, the Chronicle of Chiang Saen identifies the 9th ruler as Lao Ton, assigns him a significantly shorter reign, and provides no further information on political, administrative, or urban developments. The royal lineages in both sources begin to converge again in the late Ngoenyang period, from the early 12th century onward.

The traditionally recorded account of the exceptionally long reign of Lao Chakkaraj, also known as Pu Chao Lao Jok (ปู่เจ้าลาวจก), presents a significant chronological problem. Several sources attribute to this ruler a reign exceeding one hundred years,^{[1]: 7–8 [8]: 62} a duration that is inconsistent with established historical chronology. This discrepancy has been interpreted as possibly arising from the use of Pu Chao Lao Jok not as a personal name, but as a hereditary or honorific title borne successively by multiple rulers of Lawa polities across different periods.

Evidence supporting this interpretation appears in the Legend of Singhanavati, particularly in accounts concerning the reign of Singhanavati, the first monarch of the Yonok Kingdom. Dated to the 7th century BCE, the narrative mentions a figure bearing the title Pu Chao Lao Jok,^{[24]: 3–4} identified as Lao Kayu (ลาวกะยู), who is described as a ruler of the Lawa people.^[7]: 29 A century later,^[7]: 40 during the reign of Achuttraraj (พญาอชุตราช),^{[7]: 41–2} the text again refers to a figure holding the title Pu Chao Lao Jok, identified as Kammalo Rishi (กัมมโลฤาษี),^{[7]: 37, 42} who ruled a polity centered at Doi Tung and whose adopted daughter was married to Achuttraraj.^{[7]: 36–37}

References to the same title in later periods further support the possibility of its continued use across generations. Notably, during the reign of Pangkharaj of Yonok in the 4th century CE, the chronicles again mention Pu Chao Lao Jok as the ruler of a polity at Doi Tung.^[7]: 74 The recurrence of the title over several centuries suggests continuity in titulature rather than the reign of a single individual of exceptional longevity. This interpretation is consistent with the hypothesis proposed by Manit Vallipodom, who argues that Lao Chakkaraj, or Pu Chao Lao Jok of Ngoenyang, was a descendant of an earlier Pu Chao Lao Jok associated with Yonok.^[7]: 52

Prior to the relocation of Lao Chakkaraj from Doi Tung to fortify Wiang Phang Kham in 638 CE, an event traditionally regarded as marking the inception of the Ngoenyang Kingdom, historical records attest to the presence of several local rulers who governed the Doi Tung–Wiang Phang Kham region, as outlined below.

The following section enumerates the rulers of the Ngoenyang Kingdom and the durations of their reigns.

Color legend

As the later portions of the royal lineages presented in both sources exhibit certain inconsistencies, the following offers an alternative reconstruction of the monarchs of this late period, based on a comparative interpretation of both sources and their relationship to the narrative of King Chueang.