I might be missing something obvious here but I've been trying to figure it out. I started wondering after seeing Nyssa Vex on the Krypton show and Faora Ul (or Hu-Ul depending on comics version) in the Man of Steel film. I've turned up nothing for Ursa on Google, is it a mystery or just never been mentioned yet? I'd think it would've come up in the comics at some point over the years, like when she had a child with Zod.
How are these three women related, if at all? They have a very similar look to them compared to other Kryptonians. If the info is missing from a wiki I bet one of you knows it from reading all the issues! Thanks in advance.