Who was Grandmother Wren’s Retinue?

I'm relistening to arc three right now and and one of the things that stood out is how the witches bring a retinue to the Conclave. And I started to wonder if Wren had been to a conclave before, who did she bring with her?

I find it highly strange that Wren (who is supposed to be the voice for humanity on the conclave) would bring no one else with her.

So who else would you theorise accompanied her to these meetings?