![Guzhu Guzhu](https://upload.wikimedia.org/wikipedia/commons/thumb/e/e2/States_of_Zhou_Dynasty.png/400px-States_of_Zhou_Dynasty.png)
Guzhu (Chinese: 孤竹; pinyin: Gūzhú) was a vassal state of the Shang and Zhou dynasties located in the vicinity of modern Tangshan, Hebei province. It was a Dongyi state and had close relations with King Tang of Shang. During the Western Zhou dynasty, the Lichi and Shanrong tribes rose up in the north-west and north-east respectively, causing concerns to Guzhu's southern neighbors, the states of Qi and Yan. In 664 BC, the monarch of an already-weakened Guzhu was killed by a Qi-Yan coalition during an expedition against the Shanrong. Finally, in 660 BC, Qi and Yan annexed Guzhu.
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