YMMV / Stargate Atlantis S03 E04 "Sateda"

• Complete Monster: The Wraith "King" or "General" is a sadistic Blood Knight who commands a Hiveship, having committed the taboo of murdering his Queen to usurp control of it from her. Harvesting countless planets over the centuries, the King has destroyed Ronon's home world, annihilating the entire population , including Ronan's lover. Implanting a tracking device in Ronon to hunt him from planet to planet for sport, the King destroys any world where he takes shelter. Returning to Ronon's home world to kill him on it, the King mocks him for the death of his people.
• Harsher in Hindsight: Watching the series in chronological order, it seems like an oddity that a Hive is being commanded by a "King". Season 5 establishes that Wraith cannot fathom not being led by a Queen, for both cultural and reproductive reasons. This confirms that the "King" removed his former Queen violently.