Place

Dien Triet

The lake where Ly Bi camped against the Liang army, building so many warships that they filled its surface (in 546 by the Tongjian and the Complete Annals); his army was badly broken after a night when the river suddenly rose and poured into the lake.

At a glance

Location
At Tan Xuong, that is Phong Chau — according to a note by Hu Sanxing that the Cuong muc passes on through the Qing-era Tongjian jilan1
Dates
The Tongjian places Ly Bi's camp at the lake after the entries for the ninth month of 546; the Complete Annals put the battle in the eighth month; the Chen shu pushes it all into the following year234

About the place

The old chronicles say

The Tongjian records that Ly Bi brought twenty thousand men out of the land of the Lao and camped at the Dien Triet lake, building so many warships that they filled its surface. The Chen shu describes the position in more detail: Bi pitched camp on the border of Khuat Lao, built boats until they filled the lake, and the Liang armies were afraid, and camped at the mouth of the lake, not daring to advance. By the Chen shu, Duong Phieu had to ask Tran Ba Tien for a plan; Ba Tien made a long speech, the generals fell silent, and then his troops alone charged ahead.24

Then comes the strange part: that night the river suddenly rose seven zhang and poured into the lake, its current fierce; Ly Bi's army was badly broken and fled into the Khuat Lao cave. The Complete Annals tell of the same battle but differ in two places: they place it in the eighth month rather than after the ninth, and the river rises only seven chi — one character apart, and the figure ten times smaller. The Cuong muc follows the Complete Annals, and also writes seven chi.435

Mentioned in

  1. Episode 7The Liang strike back, and Ly Nam De dies, 545-54816 min

Sources for this page

Every row of the profile and every passage below points to one of these documents. How we choose and check sources

  1. Kham dinh Viet su thong giam cuong muc

    Preliminary Annals book 4 — the notes on place names

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  2. Zizhi tongjian

    book 159, Annals of the Liang 15 — main text, in an edition without commentary

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  3. Dai Viet su ky toan thu

    the annals of the Early Ly, folios 14b-17a — main text and the Complete Annals’ own small notes

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  4. Chen shu

    book 1, the annals of Cao To, first part — main text

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  5. Kham dinh Viet su thong giam cuong muc

    Preliminary Annals book 4 — the headline entries and the detailed entries

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