Bertilde Bertilde; ベルティルデ
Age
Gender Female
Blood Type
Birthday
Family structure
Spoiler　Father: Giebe Groschel (third generation) 　 Mother: father's first wife 　 Older sister: Brunhilde 　 Younger half-brother: child of father's second wife
Age related
Spoiler　Grade difference with Rozemyne: -3 　 Birth season: spring

Giebe Groschel's youngest daughter. She has rose pink straight hair and amber eyes.