Historically it is. Only nobles tend to be eligible for promotion to Earl (Where the word Jarl comes from) when the old one dies without an Heir, or is Exiled (As in the Civil Wars) in a Feudal Power Shift. For instance, the King is deposed, and his son favors certain Lords over others. Court intrigue, lots of enemies.
I would add in game Examples (Such as all the secondary Jarls, and what's his nuts, in the Cloud District.) Also, differentiate them from other ranks like Thane, or Jarl's Houscarl such as Galmar, and Irileth. (The former may be a Lord too, for all I know. He has a Family Name in Windhelm.)
Historically it is. Only nobles tend to be eligible for promotion to Earl (Where the word Jarl comes from) when the old one dies without an Heir, or is Exiled (As in the Civil Wars) in a Feudal Power Shift. For instance, the King is deposed, and his son favors certain Lords over others. Court intrigue, lots of enemies.
I would add in game Examples (Such as all the secondary Jarls, and what's his nuts, in the Cloud District.) Also, differentiate them from other ranks like Thane, or Jarl's Houscarl such as Galmar, and Irileth. (The former may be a Lord too, for all I know. He has a Family Name in Windhelm.)