《资治通鉴·唐纪·唐纪四十七》
徐、海、沂、密观察使高承宗去世。甲戌，德宗让高承宗的儿子高明应代理军中事务。
徐、海、沂、密观察使高承宗卒，甲戌，使其子明应知军事。
Gao Chengzong, Observational Envoy of Xu, Hai, Yi, and Mi, passed away. On Jiaxu Day, Emperor Dezong had Gao Chengzong’s son Gao Mingying act as his deputy for handling military affairs.