The Knight's Fate

The Knight's Fate is a DLC for Hollow Knight, which is activated by defeating White Defender for the first time. It consists of mostly the 5 Great Knights, hence the name. It provides lore and what actually happened to each of them(Except Ogrim and Ze'mer).

Normal Enemies
Guard Maggot: These guys stand guard to stop Hegemol from escaping.

Berserk Traitor: These appear during the Dryya fight.

Bosses
Hegemol

Dryya

Ismath

Ze'mer

The King's Advisor

NPCs
Hegemol. He is trapped with a bunch of maggots in a secret Forgotten Crossroads room. If you defeat them, he dissapears, then can be seen in the False Knight arena with his armor back. Talking to Dung Defender after that reveals that Hegemol stopped by and told him the Pale King's Fate. Dream-Nailing him allows you to get extra dialogue by going in his mind and doing a boss battle if you want to challenge him.

Gruzzy. He appears in dirtmouth after completing the Pantheon of the Master. He usually talks about how he is lost and doesn't want to go underground, hinting that it is because of the Gruz Mother's death.

The King's Advisor. If you kill him, he looks okay, but he doesn't respond to you after you re-enter the room after leaving, hinting he died. But you can dreamnail him to talk to him just like Hegemol.

Story
Ehh

After Defeating all the 5 great knights and being in the white palace
There will be a coffin in City of Tears, which when interacted with says "When the king is dead I will be revived. But with all my insanity deprived" When wearing the Kingsoul and having defeated all 5 great knights(including white defender) a Mosquito-esque bug appears from outside of it, and battles you in the King's Advisor fight.