(ʔaːn zɨəŋ vɨəŋ) was the king and the only ruler of the kingdom of Âu Lạc, a classical antiquity state centered in the Red River Delta. As the leader of the Âu Việt tribes, he defeated the last Hùng king of the state of Văn Lang and united its people – known as the Lạc Việt – with his people, the Âu Việt. An Dương Vương fled and committed suicide after the war with Nanyue forces in 179 BCE.
Biography
Origin and foundation of Âu Lạc
The antecedents of this figure are "cloudy" since the only information provided by written accounts is his name, which appears to associate him with the ancient state of Shu in what is now Sichuan, conquered by Qin dynasty in 316 BCE. This was also the traditional view of Chinese and Vietnamese historians. However, there are some problems inherent in accepting this traditional view. Many chronicles including Records of the Outer Territories of the Jiao province, Đại Việt sử lược, Đại Việt sử ký toàn thư stated that he was Shu prince (ms. "蜀王子", literal meaning: "son of the Shu king"), but they were unable to describe precisely his origin. Later historians had a more nuanced view. In Khâm định Việt sử Thông giám cương mục, the writers expressed doubts about King An Dương Vương's origin, claiming it was impossible for a Shu prince to cross thousands of miles, through forests, many states to invade Văn Lang. In 1963, an oral tradition of Tày people in Cao Bằng titled "Cẩu chủa cheng vùa" was recorded. According to this account, at the end of Hồng Bàng dynasty, there was a kingdom called Nam Cương (lit. "southern border") in modern-day Cao Bằng and Guangxi. It consisted of 10 regions, in which the King resided in the central one (present-day Cao Bằng Province).The other nine regions were under the control of nine lords. While King An Dương's father (Thục Chế 蜀制) died, he was still a child; yet, his intelligence enabled him to retain the throne and all the lords surrendered. Nam Cương became more and more powerful while Văn Lang became weak. Subsequently, he invaded Văn Lang and founded the state of Âu Lạc in approximately 257 BCE, proclaiming himself King An Dương (An Dương Vương).
Construction of Cổ Loa Citadel
King An Dương established the capital of Âu Lạc in Tây Vu, where a fortified citadel is constructed, known to history as Cổ Loa. It was the first political center of the Vietnamese civilization pre-Sinitic era, with an outer embankment covering 600 hectares, one of the largest prehistoric settlement sites of Southeast Asia.
The events associated with the construction of this spiral-shaped citadel have been remembered in the legend of the golden turtle Kim Quy. According to this legend, when the citadel was being built, all the work done during the day was mysteriously undone during the night by a group of spirits seeking to avenge for the son of the previous king. The local spirits were led by a thousand-year-old white chicken perched on nearby Mount Tam Đảo. The King then burnt incense, prayed, and evoked the gods to help him. In answer to his plea, a giant golden turtle suddenly emerged from the water, subdued the white chicken, and protected him until the citadel's completion. When he departed, he gave one of his claws and instructed the King to use it as a trigger of a crossbow, with the assurance that with it he could be invincible.
King An Dương commissioned Cao Lỗ (or Cao Thông) to construct a crossbow and christened it "Saintly Crossbow of the Supernaturally Luminous Golden Claw" (nỏ thần), which one shot could killed 300 men.
War with Nanyue
In 204 BCE, in Panyu (now Guangzhou), Zhao Tuo, established the kingdom of Nanyue. Taylor (1983) believed during the time when Nanyue and Âu Lạc co-existed, Âu Lạc temporarily acknowledged the suzerainty of Nanyue, but rather than implying that Nanyue exerted any real authority over them, this simply represented their mutual anti-Han sentiment. As peaceful relations with Han were restored, Nanyue's influence over Âu Lạc lapsed. The army Zhao Tuo had created to oppose the Han was now available to deploy against the Âu Lạc.
The details of the campaign are not authentically recorded. Zhao Tuo's early setbacks and eventual victory against King An Dương were mentioned in Records of the Outer Territories of the Jiao province. Records of the Grand Historian mentioned neither King An Dương nor Zhao Tuo's military conquest of Âu Lạc; just that after Empress Lü's death (180 BCE), Zhao Tuo used his own troops to menace and used wealth to bribe the Minyue, the Western Ou, and the Luo into submission. However, the campaign inspired a legend whose theme is the transfer of the turtle claw-triggered crossbow from King An Dương to Zhao Tuo. According to this legend, ownership of the crossbow conferred the political power:「He who is able to hold this crossbow rules the realm; he who is not able to hold this crossbow will perish.」
Unsuccessful on the battlefield, Zhao Tuo asked for a truce and sent his son Zhong Shi to submit to King An Dương to serve him. There, he and King An Dương』s daughter, Mỵ Châu, fell in love and were married. A vestige of the matrilocal organization required the husband to live in the residence of his wife』s family. As a result, they resided at An Dương』s court until Zhong Shi managed to discover the secrets and strategies of King An Dương. Meanwhile, King An Dương treated Cao Lỗ disrespectfully, and he abandoned him.
Zhong Shi had Mỵ Châu show him the sacred crossbow, at with point he secretly changed its trigger, neutralizing its special powers and rendering it useless. He then asked to return to his father, who thereupon launched new attack on Âu Lạc and this time defeated King An Dương. History records that, in his defeat, the King jumped into the ocean to commit suicide. In some versions, he was told by the turtle about his daughter's betrayal and killed his daughter for her treachery before killing himself. A legend, however, discloses that a golden turtle emerged from the water and guided him into the watery realm. There is also a tradition that King fled south to the modern-day Nghệ An Province, building a new citadel and ruled until his death.
Legacy
Vietnamese historians typically view the main events of this era as having roots in historical fact. However interpretation and reconciliation of the history of the period has been set in, and sometimes against, the history of Soviet interpretation of history. The capital of King An Dương, Cổ Loa, was the first political center of the Vietnamese civilization pre-Sinitic era. The site consists of two outer sets of ramparts and a citadel on the inside, of rectangular shape. The moats consist of a series of streams, including the Hoang Giang River and a network of lakes that provided Cổ Loa with protection and navigation. Kim estimated the population of Cổ Loa possibly ranged from 5,000 to around 10,000 inhabitants.