《水经注·卷十三》
连水又往北流经当城县老城西面。汉高祖十二年俘虏了赵王，就把赵国改设为郡。
连水又北径当城县故城西，高祖十二年，周勃定代，斩陈稀于当城，即此处也。
The Lian River flows northward and passes by the west of Dangcheng County's old city. In the twelfth year of Emperor Gaozu of the Han Dynasty, Zhao Wang was captured and the Zhao State was changed to a county.