idk if you've read King's Maker, Eternal Covenant, The Fallen Duke & the Knight who Hated Him, and Two Empires are the ones I can think of
https://www.mangago.zone/read-manga/the_fallen_duke_the_knight_who_hated_him/
https://www.mangago.zone/read-manga/heaven_official_s_blessing/
https://www.mangago.zone/read-manga/to_be_or_not_to_be/
https://www.mangago.zone/read-manga/eternal_covenant/
https://www.mangago.zone/read-manga/bad_friend/
https://www.mangago.zone/read-manga/mo_dao_zu_shi_novel/
https://www.mangago.zone/read-manga/turning/
https://www.mangago.zone/read-manga/stuck_in_my_sister_s_dating_sim/
https://www.mangago.zone/read-manga/reincarnated_into_demon_king_evelogia_s_world/
https://www.mangago.zone/read-manga/trash_of_the_count_s_family/
(not bl but it gives the vibes n it’s a good read ╮(￣▽￣)╭)))
See you, My King
Any good Historical/royalty BLs?