Queen Granzreich is the Queen of Granzreich, wife of Viktor von Granzreich and mother of Eins, Kai, Bruno, Leonhard, Licht, and Adele.
Not much is seen of the queen so far, but it is said that Bruno resembles her.
Not much is known about her as she had not appeared in the manga yet, but according to her children she seemed to be a loving mother.
Leonhard mentioned that she and his father used to take him to the zoo when he was little.
She appears in Leonhard's flashback about Adele's birth, where she's shown to be overjoyed along with her husband at having given birth to a daughter.