2018 South Korean TV series
Grand Prince (Korean: ) is a 2018 South Korean television series starring Yoon Shi-yoon, Jin Se-yeon and Joo Sang-wook. The series aired on TV Chosun from March 3 to May 6, 2018, on Saturdays and Sundays at 22:50 (KST).
The drama achieved a rating of 5.627% for its finale, becoming the 
fourth-highest-rated TV Chosun drama behind "Love (ft. Marriage and Divorce)", ', and '.
Synopsis.
A drama about two princes who enter into a rivalry due to their love for the same woman. It is loosely based on the true stories of and King Sejo.
 The younger brother of Lee Kang and third in line to the throne. He is considered as the most eligible bachelor in Joseon Dynasty.
 A beautiful and elegant lady who is gentle and passionate. She gets caught up in a love triangle between two princes, but her heart only belongs to Lee Hwi. 
 An ambitious and charismatic prince. Lee Hwi's older brother and second in line to the throne. He dreams of becoming the next King of Joseon.
Lee Hwi's bodyguard. A woman who grew up in the wild and has strong survival instincts. 
She has a one-sided love for Lee Hwi.
Lee Hwi's bodyguard.
Lee Hwi's eunuch. 
 Ja-hyun's father. 
Ja-hyun's mother. 
 Ja-hyun's brother. He has a secret crush on Ggeut-dan.
Sung Ja-hyun's maid. Despite being born in a distinguished family, she decides to become a maid to escape the demands of her family.
Sung Ja-hyun's little cousin, she was the member of "Queen's Selection".
The elder brother of King Sejong the Great. Supporter of Lee Kang. 
 Lee Kang's wife. A lady who desires power over love.
A woman who joined forces with Lee Kang to win over Lee Hwi's love.
 Kim Gwan's sister, and the King's concubine.
 Queen Dowager Shim's grandson. He is the Crown Prince until the King's death. As the new King even though he was little, his grandma would act as guardian for him to lead the country until he was an adult. While Prince Eun Sung is exiled to another island, he was forced to abdicate by his uncle Prince Jin Yang.
 The princes' caretaker. 
 Na-gyeom's sidekick.
Production.
The first script reading was held on November 23, 2017, at TV Chosun Studio.
Notes.
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References.
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