During the Anshi Rebellion, which erupted in 755, Emperor Xuanzong fled to Chengdu, while Li Heng and his sons, including Li Chu, fled to Lingwu.
Pada saat Pemberontakan Anshi, yang meletus pada 755, Kaisar Xuanzong melarikan diri ke Chengdu, sementara Li Heng dan putra-putranya, termasuk Li Chu, melarikan diri ke Lingwu.