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In page Queen Hyohyeon:

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King Cheoljong added “Gyeonghye” (경혜; 敬惠) in 1851[1] and “Danseong” (단성; 端聖)[1] in 1853.[citation needed] In 1866, King Gojong[citation needed] added “Suwon” (수원; 粹元),[1] and finally in 1908 during King Sunjong’s reign, he posthumously made her empress and added “Seong” (; ).[citation needed]