Long before Mordhau, one of the best examples of first-person melee combat on the PC was 2012's Chivalry, so it’ll be interesting to see how Chivalry II shapes up when it’s released next year.
On the bright side, hey, it’s more Chivalry! On the less bright side:
Chivalry 2 is currently in development for PC and is targeting a 2020 release and will debut on the Epic Games Store and release on other PC platforms 12 months later.