- Katherine Pierce gave birth to her daughter. It is unknown who the father is. Katherine's father took the child away without even letting her hold the baby once, despite Katherine begging both her mother and father. ("Katerina")
Elijah and Klaus meet Katherine ("Klaus (episode)")
Katherine was running from Klaus's men (among them, Elijah). She hid in the forest so they didn't find her. Trevor found her and told her to run to a cottage east of where they were. When she got there, she knocked on the door and was greeted by an old woman, who was compelled by Rose to not let strangers in, but after Katherine explained herself, Rose reluctantly allowed her entry. She showed Rose the moonstone she stole from Klaus to prove who she was, but the act only frightened Rose into deciding to turn Katherine into Klaus to save herself. When Trevor arrived later, he convinced Rose to help, but not before Katherine took matters into her own hands by turning herself into a vampire.
- Rose tries to kill her but she shields herself with the human woman and flees shortly after.("Katerina")
Rose and Trevor have been running from Klaus and Elijah since then. ("Rose (episode)")