You might have more luck with Sengoku period historical figures if that's your speed, but I'm not on AO3, so idk. Do I think Uesugi Kenshin and Shingen Takeda explored each other's bodies? No. Do I think some weeb possibly wrote about my weird historical crack ship because they're Japanese? Sure.
There are two fics in English tho, but they're locked to registered users only, Sarah ;)
(There's 6 fics in total with the tag: these 2, one in Chinese, and 3 in French)
The tag may exist because there were works at some points but they were deleted (or put in unrevealed collections), but here we do have 6 works currently available on the site ;)
Comments
https://forums.sufficientvelocity.com/threads/la-chanson-de-france-fate-broken-europa.55769/
(There's 6 fics in total with the tag: these 2, one in Chinese, and 3 in French)
(this is a joke)