Maseki Gourmet - Mamono no Chikara wo Tabeta Ore wa Saikyou! - Vol. 12 Ch. 67.1 - The Shocking Truth 1

[TiJoTo]

Too bad, gotta execute Chris. She's a threat to the current royalty being being closer to the first king and technically having being their great, great, great, great something aunt.

Nope, she doesn't know nor would she act on it if she did. If it became widely known there might be a group who tries to force what they view as the rightful heir, but even that can be preemptively solved by making her the first wife and having a kid.