Princess Jeonghwa

Lady Yi of the Jeonju Yi clan or posthumously called as Princess Chŏnghwa, was the fifth child, second and youngest daughter of Yi Chach'un and also a full younger sister of Yi Sŏng-gye, the founder of the Joseon Dynasty.

In 1392, her brother made a new dynasty, their father was granted royal title as King Hwan (환왕; 桓王; later Hwanjo; 환조; 桓祖) and their mother was granted the title as Queen Ui (의비, 懿妃; later Queen Uihye; 의혜왕후; 懿惠王后). Under Emperor Gojong of Korea's command, she was then posthumously honoured as Princess Chŏnghwa in 1872. She married Cho Inbyŏk, son of Cho Ton from Hanyang Cho clan . After the Joseon Dynasty was established, Cho was then honoured as Internal Prince Yongwon .

Family Father: Yi Chach'un (; 1315–1360) – son of Yi Ch'un and Lady Pak. Mother: Lady Ch'oe (; 1304–?) – daughter of Ch'oe Han-gi and Lady Yi. Brother: Yi Sŏng-gye (; 1335–1408) Husband: Cho Inbyŏk, Internal Prince Yongwon (; 1327–?) – son of Cho Ton and Lady Yi. Adopted daughter: Lady Cho (; 1340–?) First daughter: Lady Cho (; 1343–?) – married Hwang Kil-wŏn . Second daughter: Lady Cho (; 1345–?) – married Im Maeng-yang . First son: Cho Pu (; 1347–?) Adopted son: Cho On, Internal Prince Hancheon (; 1347–1417) – married firstly with Lady Jang, then remarried again with Lady Bak. Second son: Cho Paek (조백; 趙伯; 1365–?) Third son: Cho Po (조보; 趙保; 1368–?) Third daughter: Lady Cho (; 1370–?) Fourth son: Cho Hu (; 1372–?) Fifth son: Cho Yŏn, Internal Prince Hanpyeong (; 1374–1429) – married Lady Kim. Sixth son: Cho Sa (; 1378–1432)