Who is Katrine? Why does she want to go Malmouth?

After you kill port valbury final boss, you enter a room where Katrine is. You try to persuade her to come with you but she insists on going Malmouth to find her baby. There is no information in grim wiki.

She’s a hostage of Aldrich who Aldrich…erm…‘mated’ with to produce her child, which was then sent to Malmouth.

That’s all we know so far.

Thank you.