
Well, the other thing that occurred to me is that there's a long, LONG history of younger sons coveting the power and prestige of the older son. In fiction (and sometimes in History), they tend not to fully grasp or understand the responsibility that comes with the position of power, and see only the power itself and the prestige it nets them.
It wouldn't be the first time a younger son turned traitor, tired of being in the shadow of an older sibling. >.>
It wouldn't be the first time a younger son turned traitor, tired of being in the shadow of an older sibling. >.>