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Events on Thursday 25 April 1185 3
1178 – 1185Emperor Antoku (1178-1185)Died 25 April 1185, aged 6The youngest reigning emperor in Japanese history, Antoku ascended the throne as an infant under the regency of his grandfather Taira no Kiyomori. He drowned at age six when his grandmother leapt into the sea with him during the Taira clan's final defeat at the Battle of Dan-no-ura.
1185Battle of Dan-no-uraMinamoto forces destroy the Taira fleet, ending the Genpei WarOn 25 April 1185 the Minamoto clan annihilated the Taira navy in the Shimonoseki Strait, ending the five-year Genpei War. The young Emperor Antoku drowned during the battle along with much of the Taira leadership. The victory secured Minamoto no Yoritomo's dominance and led directly to the establishment of the Kamakura shogunate.
1185Prince John leads an expedition to IrelandHenry II's youngest son lands at Waterford to assert English lordshipPrince John, granted the Lordship of Ireland by his father Henry II, landed at Waterford on 25 April 1185 with a large retinue including the chronicler Gerald of Wales. The expedition alienated Irish lords and English settlers alike through its mismanagement, and John returned to England within months.