Analysis of information sources in references of the Wikipedia article "Dynastie Jin (1115-1234)" in French language version.
« The emperor Kao-tsung had taken flight to Ningpo (then known as Mingchow) and later to the port of Wenchow, south of Chekiang. From Nanking the Kin general Wu-chu hastened in pursuit and captured Hangchow and Ningpo (end of 1129 and beginning of 1130. However, the Kin army, consisting entirely of cavalry, had ventured too far into this China of the south with its flooded lands, intersecting rivers, paddy fields and canals, and dense population which harassed and encircled it. We-chu, leader of the Kin troops, sought to return north but was halted by the Yangtze, now wide as a sea and patrolled by Chinese flotillas. At last a traitor showed him how he might cross the river near Chenkiang, east of Nanking (1130). »
