They're pretty open about who is their offspring

w/Myrcella dying

I'm wondering how Tommen is still king if they made her atone for the alleged affair with Jamie

wouldn't it make sense to then assume these kids aren't Robert's

solidifying Jon Snow's claim

or Benjen, etc... (not sure what Benjen's calim would be now that he's a walker)

strange they just left this out of consideration, so far.