| Queen Jeonghwa | |||||||||||||||||||
| Succession: | Queen consort of Goryeo (posthumously) | ||||||||||||||||||
| Successor: | Queen Wonchang | ||||||||||||||||||
| Father: | Kang Po-yuk | ||||||||||||||||||
| Mother: | Lady Kang Tŏk-chu | ||||||||||||||||||
| Issue: | Chakchegŏn | ||||||||||||||||||
| Birth Name: | Kang Chin-ŭi | ||||||||||||||||||
| Posthumous Name: | Jeonghwa (정화, 貞和; "Chaste and Harmonious") | ||||||||||||||||||
| House: | Sinchon Kang clan | ||||||||||||||||||
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Kang Chin-ŭi, posthumously honoured as Queen Jeonghwa of the Sinchon Kang clan (was the second daughter of Gang Bo-yuk who would become the great-grandmother of Wang Kŏn, founder of the Goryeo dynasty. As a figure from the Later Silla period, she is the first one from among the ancestors of King Taejo to be accurately reported by the remaining records.
Gang Chung was a son of Gang Ho-gyeong, the founder of the Sinchon Kang clan.[1] [2] [3] He had three children named as Ijegŏn, Po-sŭng and Po-yuk. Kang Po-yuk married with his niece Kang Tŏk-chu, the daughter of his brother Ijegŏn, and their daughter Kang Chin-ŭi was born. Kang Chin-ŭi slept with a Chinese nobleman and birthed Chakchegŏn. The Chinese nobleman father of her son was from the ruling House of Li of the Tang dynasty, China. According to and , he was Emperor Suzong of Tang. In Pyeonnyeongangmog, it stated that Emperor Xuānzong of Tang was the father of Chakchegŏn.[4] While on his way to find his father in China, Chakchegŏn met Queen Wonchang and married her and decided to return to Korea instead. According to Record of Seongwon, Queen Wonchang was a daughter of Tu Ŭn-chŏm from Pyongju.[5] Queen Wonchang gave birth to 4 sons; one of them whose name was Wang Ryung. His son eventually became the founder of Goryeo, Taejo of Goryeo.
According to Goryeosa, her elder sister climbed the top of Mount Ogwan in a dream. In the dream, she urinated and flooded the whole world and she talked about this dream to her younger sister, Chin-ŭi. Chin-ŭi thought this dream implied good luck and she bought her sister's dream with her silk woven Chima jeogori. After that she would meet the Tang dynasty prince in Silla and give birth to Chakchegŏn.