I'm looking for a manga with a low fantasy setting (that is a fantasy world but without supernatural elements or very few supernatural elements) or historical setting, though a low fantasy world is preferred.
Fights should be slightly realistical, no super techniques yelled out loud and no supernatural powers, though super powers which are rather physical in form are fine (like inhuman strength or enhanced senses).

A few examples of what I'm looking for:
Knights.
Berserk (before the loli witch was introduced by Miura and increased the amount of supernatural elements in the manga).
Vinland Saga.
Sidooh.
Vagabond.

Blade of the Immortal seems ok as well, even though I just strted reading it so I can't say for sure.
I've been recommended things like Akame ga Kill but it doesn't cut it; it had potential to become a manga I might like but those Teigu weapons are too supernatural for my taste. And Ubel Blatt seems just lame.

Rurouni Kenshin they go a little over the top towards the end, but i dont think there are any super powers.

he does yell his key techniques... but they are just super strength finishers and there is normal swordplay inbetween

Few favs
Comedy:
Kyou kara ore wa!!, Mx0, Angel Densetsu, Skip Beat, Ai Kora, The Devil King is Bored

Romance:
Hana to Akuma, No bra, Shinigami Trilogy, kindan no koi de ikou, Usagi Drop, Threads of Time, Girl Friends

Most under rated:
Kindan no koi de ikou, kyou kara ore wa!.
m0r l83r... maybe >_>

Maybe...

Gamaran
Shigurui

The Ravages of Time
Kingdom
Vagabond

Azumi (historical)
Claymore (fantasy), though the youma might be a bit too fantastical for your tastes
Historie (historical)
Kagerou Nostalgia (fantasy), though the fantasy elements are very much present
Rain (fantasy), there's magic in the world too, though
Shoukoku no Altair (fantasy), there's only some swordplay, I think; it's mostly politics
Shut Hell (historical)

You could also try Arslan Senki (ARAKAWA Hiromu) though it's just starting out. Break Blade might also fit, though it's a giant mecha doing the swordplay.

Knight Run (Sci-Fi) Humans fight Humanoid aliens with swords and reinforced bodies. (try it)

If you want to succeed
Then you don't need Good Luck
You need the ability to overcome Bad Luck

Happines and Light needs a source to exist
Hatred fuels itself and Darkness exist where there is no Light

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† Lightmare †