Try maybe:
Duke's Private Tutor
Or Who’s your Daddy
(=・ω・=)
Oops I read too quickly
Then it is not what you are looking for !
Sorry
https://www.mangago.zone/read-manga/ghosts_of_greywoods/
https://www.mangago.zone/read-manga/her_shimcheong/
https://www.mangago.zone/read-manga/moonlight_garden_kang_unnie/
https://www.mangago.zone/read-manga/getting_to_know_grace/
https://www.mangago.zone/read-manga/living_will/
https://www.mangago.zone/read-manga/opium/
https://www.mangago.zone/read-manga/couple_of_mirrors/
https://www.mangago.zone/read-manga/goodbye_my_rose_garden/
https://www.mangago.zone/read-manga/the_villainess_who_steals_the_heroine_s_heart/
https://www.mangago.zone/read-manga/maid_in_heaven_1/
Anyone have any historical gl manga/manhua/manhwa recommendations? (Or historical gl novel recommendations)