Under the Queen's Umbrella (kdrama)
Current in South Korea. On the weekends only; also on Netflix. A historical drama:
Queen Im Hwa Ryeong is the primary character in the Netflix drama Under the Queens Umbrella and shes played by Kim Hye-su.
Under the Queens Umbrella is set in Korea during the Joseon period and revolves around Queen Im Hwa Ryeong and her efforts to turn her rabble-rousing sons into respectable grand princes and worthy heirs to the throne.
Standing in her way are the several royal consorts of the king and the Queen Dowager, the kings mother. The consorts have their own sons who they wish to see surpass the crown prince, while the Queen Dowager was once a concubine who did succeed in deposing the queen of her time.
https://theenvoyweb.com/features/im-hwa-ryeong-under-queens-umbrella-real/
It's a fictionalized account of the Chosun period and the characters are fictional. The story focuses on the inevitable court intrigue over the succession line to the throne. The number of characters may be too many to develop in 16 episodes. It is difficult to distinguish the characters especially the princes and the concubines. Therefore the plot is somewhat difficult to follow. Although entertaining for those who like this genre, I prefer dramas (although also fictionalized) that are based on actual historical events.