Yunyang (578) — the same event in History of the Northern Dynasties and Book of Zhou
History of the Northern Dynasties: During a northern campaign the emperor fell ill and stayed at the Yunyang palace (he died in the sixth month)…
What each source says
During a northern campaign the emperor fell ill and stayed at the Yunyang palace (he died in the sixth month).
癸巳，帝不豫，止於雲陽宮
Location: 北史 卷10 宣政元年
Emperor Wu raises troops from five routes for a northern campaign against the Turks, but falls ill, stays at Yunyang Palace, and halts the army
癸巳，帝不豫，止于雲陽宮。
Location: 周書 卷6 宣政1年5月
Place: 雲陽 · 甘泉宮
Show on the map — open History of the Northern Dynasties (Beishi), Annals