Eckhart エックハルト
Family structure
Spoiler　Father: Karstedt 　 Mother: Elvira (father's first wife) 　 First Wife: Heidemarie (deceased) 　　　 Child: died with mother at fetal stage 　 Younger brother: Lamprecht 　 Younger brother: Cornelius 　 Younger sister: Rozemyne 　 Younger half-brother: Nikolaus 　 Paternal relatives 　 Great-grandfather: Aub Ehrenfest (fifth generation) 　 Great-grandfather: former Giebe Leisegang (Bonifatius's first wife's father) 　 Grandfather: Bonifatius 　 Uncle: Karstedt's half-brother 　　　 Cousin: Traugott 　 Maternal relatives 　 Grandfather: former Giebe Haldenzel 　 Uncle: Claudio
Status
Spoiler　Class: archnoble 　 Occupation: Ferdinand's aide
Age and attribute related
Spoiler　Age difference with Rozemyne (summer): +11 　 Grade difference from Rozemyne: +11 　 Birth season: spring or summer 　 Attribute: probably all attributes because he's dedicated to Ferdinand

He is Ferdinand's escort knight. He has dark green hair and blue eyes.