Historical friends to lovers

I've been searching shows with friends to lovers trope but can't seem to find any that are historical. Are there any? 

Maybe...

• Poong, the Joseon Psychiatrist & Poong, the Joseon Psychiatrist Season 2
• Who Rules the World (A Wuxia not pure historical)

 emeraldarrows:

Jun Jiu Ling (childhood friends to lovers)

Provoke (childhood friends to lovers)

Secret Royal Inspector & Joy 

Rookie Historian Goo Hae Ryung 

The Ghost Bride (fantasy/historical)

The Legendary Life of Queen Lau (they're married but it's definitely a friends to lovers arc)

The Only Girl You Haven't Seen (they're married but basically friends, then enemies, then lovers)

The King's Affection (childhood friends/crush to lovers)

The Tale of Nokdu (maybe?)

Rebirth for You 

River Where the Moon Rises 

King Is Not Easy (historical/fantasy)

Warm on a Cold Night (historical/fantasy)

Ever Night (fantasy/historical)

Arsenal Military Academy (frenemies to friends to lovers)

Unchained Love (maybe?)

My Uncanny Destiny (maybe?)

Legend of Fei (maybe?)

Love Like White Jade (maybe? It's sort of master/servant to friends to lovers)

A River Runs Through It (1990s so not historical per say, but still not modern day, definitely friends to lovers)

Wow, what a long list. Thank you, I will definitely watch some of these.