** Battle of Placentia — Emperor Aurelian is defeated by the Alemanni forces invading Italy

** Emperor Ai of Jin, a Jin Dynasty ( 265-420 ) emperor

** Emperor Ai of Han ( 27 BC – 1 BC )

** Emperor Ai of Tang ( 892 – 908 )

** Liber ad honorem Augusti by Peter of Eboli, narrative of the conquest of Sicily by Henry VI, Holy Roman Emperor ( Latin )

** Imperial Prince Nunakura Futotama-Shiki ( Emperor Bidatsu ); born 538 ( second son )

** Imperial Prince Oe or Ikebe ( Emperor YOMEI ); born 540 ( fourth son )

** Imperial Princess Ohotomo or Ohomata ; born about 560 ; married to her nephew Prince Oshisako no Hikohito no Oe, son of Emperor Bidatsu

** Imperial Princess Toneri, born about 565 ; died 603 ; married to her nephew Prince Tame Toyora, son of Emperor Yomei

** Imperial Princess Hasetsukabe no Anahobe no Hashihito, born about 560 ; died 621 ; married ( A ) to her half brother Emperor Yomei ; married ( B ) to her nephew and stepson Prince Tame Toyora, son of Emperor Yomei

** Imperial Prince Hatsusebe ( Emperor SUSHUN )

** Prince Oshisako no Hikohito no Oe, born about 556, married ( A ) Princess Ohomata ( Ohotomo ), his aunt, daughter of Emperor Kimmei and Soga no Kitashi-Hime, by whom he had a son and a daughter ;( B ) Princess Nukate-Hime ( his half sister ), by whom he had 3 sons ; ( C ) Princess Woharida ( his half sister ), by whom he had a son and a daughter:

** Princess Uji no Shitsukahi ( Uji no Kahitako ), born about 570, married to Prince Shōtoku, son of Emperor Yōmei and Empress Anahobe

** Princess Tame, married to her nephew Emperor Jomei

** Second son: Imperial Prince Ohito ( 緒仁親王 ) ( Emperor Go-En ' yū )

** First son: Imperial Prince Motohito ( 幹仁親王 ) ( Emperor Go-Komatsu )

** Henry II, Holy Roman Emperor

** Der Tag wird kommen ( The day will come, Josephus and the Emperor ), 1942

** Emperor Constantine I

** The Treaty of Münster ( Instrumentum Pacis Monasteriensis, IPM ), concerning the Holy Roman Emperor and France and their respective allies.

** The Treaty of Osnabrück ( Instrumentum Pacis Osnabrugensis, IPO ), concerning the Holy Roman Emperor, the Empire and Sweden and their respective allies.

** Jean-Bédel Bokassa, president of the Central African Republic, crowns himself Emperor.

** WWII: Emperor Hirohito announces Japan's surrender on the radio.

** Charles IV ( 1322 – 1328 )

** Charles V ( 1364 – 1380 )

** Charles VI ( 1380 – 1422 )

** Charles VII ( 1422 – 1461 )

** Charles VIII ( 1483 – 1498 )

** Charles IX ( 1560 – 1574 )

** Charles X ( 1824 – 1830 )

** Charles I ( 1266 – 1285 )

** Charles II ( 1285 – 1309 )

** Charles III ( 1382 – 1386 )

** Charles VII ( 1735 – 1759 )

** Charles I ( 1266 – 1285 )

** Charles VII ( 1735 – 1759 )

** Charles I ( 1322 – 1328 )

** Charles II ( 1349 – 1387 )

** Charles III ( 1387 – 1425 )

** Charles III ( 1759 – 1788 )

** Charles IV ( 1788 – 1808, 1808 )

** Charles Louis ( 1803 – 1807 )

** Charles I ( 1310 – 1342 )

** Charles II ( 1385 – 1386 )

** Charles I ( 1278 – 1285 )

** Charles II ( 1285 – 1289 )

** Charles III ( 1383 – 1386 )

** Charles the Bold ( 1467 – 1477 )