Who killed the King in Hunter X Hunter?

Right after Meruem aka King finished his fight against Netero, he ended up getting poisoned and faced death.

How did Meruem die in Hunter x Hunter? - Quora

My tier list of the strongest Hunter x Hunter characters (tiers aren't ordered) : r/HunterXHunter

Meruem, Hunterpedia

Who Is the Strongest Character in Hunter x Hunter: Meruem or Gon?

Art of Hunter x Hunter

Hunter X Hunter: 10 Villains Who Could Take On Meruem

Hunter x Hunter: Who Killed Meruem?

Komugi, Love Interest Wiki

What would happen if Meruem used nen conditions? (Hunter x Hunter) - Gen. Discussion - Comic Vine

Hunter x Hunter: 5 Winners Of The Chimera Ant Arc (& 5 Losers)

Hunter X Hunter: Every Main Character's Age

One of the saddest death ever : r/HunterXHunter

Hunter X Hunter - 5 People Who Can Kill Meruem

Watch Hunter X Hunter (2011)

Hunter X Hunter 2011 - 131 - Lost in Anime