The world in 603 AD — what happened that year

9 events the sources record for this year, grouped by region.

What happened

Yang Xiu, Prince of Shu and Governor of Yizhou, was deposed and made a commoner. (Book of Sui (Suishu), Imperial Annals 隋書卷002 帝紀仁壽2年12月)
In August 603 (Renshen day), Yan Rong, Commander of Youzhou, is ordered to take his own life. (Zizhi Tongjian (Comprehensive Mirror) 권179 603년 항)

When Goguryeo invaded Bukhansan fortress, the king personally defended it with ten thousand troops. (Samguk Sagi (History of the Three Kingdoms) 卷04 眞平王 25年)
General Go Seung attacked Bukhansan fortress of Silla but withdrew because of the response of its garrison. (Samguk Sagi (History of the Three Kingdoms) 卷20 嬰陽王 14年)

In the second month of the eleventh year, Prince Kume dies in Tsukushi; the news is reported by express horse, and the emperor is deeply shocked (Nihon Shoki (Chronicles of Japan) 日本書紀卷第廿二推古紀 11年 단락43)

In Jiaozhi, Li Fozi of Jiaozhou led a rebellion; Liu Fang, Grand Commander of the field army, pacified it. (Book of Sui (Suishu), Imperial Annals 隋書卷002 帝紀仁壽2年12月)

The Scottish king Aedan fought Æthelfrith of Northumbria at Sixstone and lost most of his army; Æthelfrith's brother Theobald was killed. (Anglo-Saxon Chronicle Giles/Ingram 1847 A.D. 603 항 (pg657.txt 줄 1298))
Ethelfrid, king of Northumbria, defeated Aedan, king of the Scots, and drove him from English territory (Degsastan). (Bede, Ecclesiastical History of the English People Bede HE 1.34)
Augustine summoned the British bishops and demanded unity on the questions of Easter and baptism, and showed a miracle ("Augustine's Oak"). (Bede, Ecclesiastical History of the English People Bede HE 2.2) tradition