Aunt Jo

Death
Date - a couple weeks/months before Killing November Cause - killed by Lions as retaliation Killed the Lion Regent as revenge for killing her sister years earlier.

In Killing November
Aunt Jo is in some of November's flashbacks of subtly being trained as Strategia. She is also mentioned when November learns of her death.

In Hunting November
Aunt Jo is mentioned a couple times. Her real name is revealed by Matteo when he questions November about their aunt’s death- Magdalene At the end of the book, November's dad gives her a message from her and confirms she killed the Regent.