I posted when I first started on MS where and how my name was made, but for those that missed it.
Severin-shortened from Severinus pope in 640 AD
Rheiner-shortened from my SCA name of Rhienfelser, one that serves the Rheinfel's castle.
Rheiner=one from the Rheinlands of Germany. also known as Rheinlanders. (Spelling is correct for german, Rhineland would be english translation)
My name was created for my SCA persona. World traveler born at Rheinfel's castle, archer and horseman.