|Spoiler Alert: This page contains spoilers. Read at your own risk.|
The Rosen (ローゼン) Family hails from Germany.
Rosen Magicraft is a German Magic Engineering Equipment Manufacturer, which is considered to be one of the most influential Magic Engineering companies in the world, alongside Maximilien Device that manufactures CAD.  It is also one of the largest manufacturers in the industry. 
The Head of the Rosen Family serves as President of Rosen Magicraft. 
- Bastian Rosen (バスティアン・ローゼン) - (Former Family Head, Deceased)