|Parents||Giovanni Steiner (father)|
|Siblings|| Alessandro Steiner|
Hermann Steiner - Early 31st Century House Steiner nobleman, MechWarrior, and later monk.
Hermann is the brother of former Archon Alessandro Steiner. He was the commander of the 2nd Royal Guards. Steiner resigned his commission to prevent his brother, Alessandro Steiner from using him as a political weapon in Alessandro's attempts to depose Katrina Steiner.
- Warrior: Riposte, p. 46, "Captain Daniel Allard meets with Brother Giles/Hermann Steiner in October 3027"
- Warrior: Riposte, p. 47, "Brother Giles reflects on Morgan Kell's time with the sanctuary".
- Warrior: Riposte (Novel)