For Norra, it was her Dad up until his disappearance. After accepting and moving on from it, Dulse became the most important to her, thanks to the time they spent together.

For Eudoxia, it's Bozidar. They started as rivals, but then grew into a mutual friendship over the course of them training under Kristoff. When she doesn't understand something, and want input on how something works, Bozidar is the first she goes to.