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.

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

Who killed the King in Hunter X Hunter?

Till death do us part Hunter x Hunter Meruem and Komugi Analysis

10 Scariest Hunter x Hunter Characters, Ranked

Hunter x Hunter (TV Series 2011–2014) - Episode list - IMDb

Watch Hunter X Hunter (2011)

Hunter X Hunter - 5 People Who Can Kill Meruem

Komugi, Love Interest Wiki

Hunter X Hunter - 5 People Who Can Kill Meruem

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