I don't remember who the Berkeley group is?
They’re the house whose one of the sons decided to pick fight with Liam in the academy and got literally destroyed when he dropped in with a bunch of pirates.
The moron also decided to send a crew to destroy one of Liam’s planet with the elixir creating device, the crew got destroyed instead and Liam got his hands on the elixir creating/planet resurrecting artifact.
I can't help but perplexed at these tittle of position, isn't count higher then baron?
The Berkeleys are a “baron” house in name only. The branch family of the house head is in control of multiple noble houses, the titles are just names to them with the house head in control of the important aspects (as stated in this chapter), and so despite the house head only having the “baron” title they are a major force in the empire.
I would say analogically this is like some large organized crime group running a small company as a front.