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Genna (元和) was aJapanese era name (年号,nengō, "year name") coming afterKeichō and beforeKan'ei. This period spanned the years from July 1615 to February 1624.^[1] The reigning emperor wasGo-Mizunoo-tennō (後水尾天皇).^[2] It is also known asGenwa.

• 1615Genna gannen (元和元年): The era name was changed to mark the enthronement ofGo-Mizunuoo and because of disasters such as thesiege of Osaka (大坂の役,,Ōsaka-no-eki), or more commonly, siege of Osaka (大坂の陣,,Ōsaka-no-jin). The old era ended and a new one commenced inKeichō 20.

The siege of Osaka was a series of battles undertaken by theTokugawa shogunate against theToyotomi clan, ending in that clan's destruction. Divided into two stages (the "Winter Campaign" and the "Summer Campaign"), and lasting from 1614 through 1615, the siege put an end to the last major armed opposition to the establishment of an enduring Tokugawa shogunate. The end of this period of fighting is also sometimes called theGenna armistice (元和偃武,,Genna-enbu) because theera name was changed fromKeichō toGenna immediately following its ultimate resolution.

By order ofTokugawa Ieyasu, the era name ofEmperor Xianzong of Tang China was adopted.

• 1615 (Genna 1):Tokugawa Ieyasu and his son, Shōgun Hidetada, marched again to Osaka Castle, which was captured and burned; but Hideyori managed to flee toSatsuma where he had prepared a refuge in advance.^[3]
• September 1, 1615 (Genna 1, 9th day of the 7th month): Ieyasu pulled downHōkoku-jinja.^[4]
• September 20, 1615 (Genna 1, 28th day of the 7th month): Ieyasu promulgated theGenna-rei in 17 clauses.^[4]
• June 1, 1616 (Genna 2, 17th day of the 4th month): Ieyasu died atSuruga.^[3]
• September 25, 1617 (Genna 3, 26th day of the 8th month): Former-Emperor Go-Yōzei died. He is buried atNikkō.^[3]
• 1618 (Genna 4, 8th month): A comet appeared in the sky.^[3]
• July 5, 1620 (Genna 6, 6th day of the 6th month): The emperor was married toTokugawa Kazuko, the daughter of Shōgun Hidetada; and also in that year.^[5]
• 1620 (Genna 6): There were severe fires in Mikayo on the 30th day of the 2nd month and on the 4th day of the 3rd month.^[3]
• September 10, 1622 (Genna 8, 5th day of the 8th month): theGreat Genna Martyrdom — 55 foreign and JapaneseCatholics are executed inNagasaki, part of the persecution of Christians in Japan byTokugawa Hidetada.^[6]
• September 6, 1623 (Genna 9, 12th day of the 8th month): thebakufu raised the Imperial maintenance allowance by 10,000koku.^[4]
• 1623 (Genna 9):Tokugawa Iemitsu, son of Hidetada, came to the court of the emperor where he was created Shōgun.^[3]

• Nussbaum, Louis Frédéric and Käthe Roth. (2005).Japan Encyclopedia. Cambridge:Harvard University Press.ISBN 978-0-674-01753-5;OCLC 48943301
• Ponsonby-Fane, Richard Arthur Brabazon. (1956).Kyoto: The Old Capital of Japan, 794–1869. Kyoto: Ponsonby Memorial Society.OCLC 182637732
• Screech, Timon. (2006).Secret Memoirs of the Shoguns: Isaac Titsingh and Japan, 1779-1822. London:RoutledgeCurzon.ISBN 978-0-203-09985-8;OCLC 65177072
• Titsingh, Isaac. (1834).Nihon Ōdai Ichiran; ou,Annales des empereurs du Japon. Paris: Royal Asiatic Society, Oriental Translation Fund of Great Britain and Ireland.OCLC 5850691.

• National Diet Library, "The Japanese Calendar"-- historical overview plus illustrative images from library's collection

• Japanese eras
• 1610s in Japan
• 1620s in Japan
• 17th-century neologisms

• Articles with short description
• Short description is different from Wikidata
• Articles containing Japanese-language text