In 1629, she became Empress after her father, Emperor Go-Mizunoo suddenly abdicated in the "Purple Clothes Incident."
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Kan'ei 6 (
1627): The "Purple Clothes Incident" (紫衣事件, shi-e jiken): The Emperor was accused of having bestowed honorific purple garments to more than ten priests despite the shogun's edict which banned them for two years (probably in order to break the bond between the Emperor and religious circles). The shogunate intervened making the bestowing of the garments invalid.
Meishō became the first woman to occupy the throne since
Empress Shōtoku, who died in
770.
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Kan'ei 6, on the 8th day of the 11th month (
1629): The emperor renounced the throne in favor of his daughter.
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Kan'ei 8 (
1635):
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Kan'ei 9, on the 24th day of the 1st month (
1632): Former Shogun
Tokugawa Hidetada died.
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Kan'ei 10, on the 20th day of the 1st month (
1633): There was an earthquake in Odawara in Sagami province.
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Kanei 11 (
1634): Shogun
Tokugawa Iemitsu visited
Miyako.
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Kanei 12 (
1635): An ambassador from the King of Korea is received in Miyako.
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Kanei 14 (
1637): There is a major Christian rebellion in
Arima and
Shimabara; and shogunal forces are sent to quell the disturbance.
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Kanei 15 (
1638): The Arima and Shimabara revolt is crushed; and 37,000 of the rebels are killed. The Christian religion is extirpated in Japan.
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Kanei 17 (
1640): A Spanish ship from
Macao brought a delegation of 61 people to
Nagasaki. They arrived on July 6, 1640; and on August 9th, all of them were decapitated and their heads were stuck on poles.
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Kanei 20 (
1643): An ambassador from the King of Korea arrived in Japan.
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Kanei 20, on the 29th day of the 9th month (
1643): In the 15th year of Meishō
-tennō's reign (__天皇15年), the empress abdicated; and the succession (‘‘senso’’) was received by her brother.
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Kanei 20, on the 23rd day of the 4th month (
1643): Emperor Go-Komyō is said to have acceded to the throne (‘‘sokui’’).
During her reign, Meishō's father actually ruled in her name until she abdicated in favor of her younger half-brother.