His true name is….
The Society of Blood is much more benign than its name sounds. Initially created as an award of valor for common foot soldiers, membership. The SOBs decided to make themselves a benevolent, protective order for all veterans. They quickly united informally and, without any bloodshed or even any overt threats, restored order and fairness for veterans through all the lands.
Unbeknownest to the character, he is in the royal bllodline. Suddenly the majority of royals fall ill and die, and the hero is left with the crown, but no experience or idea of what to do.