Last name- Sadie- from great-grandmother on father’s side, as is Rusałki pack tradition. His mother was a first mother, and outweighed by two mothers on the father’s side; to honor them, as his father and great-grandmother are deceased, he chose Sadie’s name.
Marshmallow is related to Michael Scott, Sadie, Micheal Skarn, Belladonna, Augustus, and Cappuccino. First mothers are Sadie, Belladonna, and Cappuccino.