Events By place Europe Battle of Degsastan: Æthelfrith of Bernicia defeats Áedán mac Gabráin of Dál Riata. Witteric overthrows and defeats Liuva II, becoming king of the Visigoths. Last mention of the Roman Senate in Gregorian Register. It mentions that the senate acclaimed the statues of emperor Phocas and empress Leontia. Asia Rebellious Göktürks depose and kill the khan Tardu. Japan's Prince Shotoku establishes a twelve level cap and rank system and is said… (More on 603)