The Battle of Sekigahara

Season 10, Episode 16: The Battle of Sekigahara
A memorial at the site of the Battle of Sekigahara. Source: https://commons.wikimedia.org/wiki/File:Sekigahara_Battlefield.jpg
A folding screen depicting the Battle of Sekigahara. Source: Public Domain
Another folding-screen depiction of the battle, this one featuring arquebuses, cavalry, and corpses. Source: Public Domain
This particular screen portrays the fighting being much more spread out, rather than both sides being two long battle lines set against one another. Source: Public Domain