Can there be two queens in a swarm?

I'm curious about the structure and dynamics of bee swarms. Specifically, the role of the queen bee is pivotal in maintaining the colony's order and reproduction. But what happens when there's a disruption in this hierarchy? Could there ever be a scenario where two queens coexist in the same swarm? Would this lead to conflict or a new balance of power? Understanding this could provide insights into the resilience and adaptability of bee colonies in the face of challenges. So, can there indeed be two queens in a swarm, and if so, what would be the implications?