An Affair of Honor (1901, Lubin Studios)
In the film, a woman is dining with her boyfriend when another woman approaches and begins flirting with the man. The outraged girlfriend challenges the interloper to a duel and the two women fight in front of entertained onlookers.
This theme proved quite popular and the film was remade several times - 1897, 1906, and in the 1990s during every episode of The Jerry Springer Show (though sadly, minus the swords).
