There is the "sister" option.
But we know this is not the case because the land of Nod was already populated.
The answer lay in why Cain killed Abel. Abel was a shepherd. "Human" was people from Adam and Eve. Everything else was subservient to humans and considered like animals.
The sacrifice offered to God, with which he found favored, was Abel's sacrifice of a "not human."
Cain, the farmer, rather staunchly disagreed with this and reasoned that the action was evil.
If you want to know where the symbolism of the Reaper came from - it was from Cain - or the stories which ultimately condensed in the biblical canon as the genesis story.
The Gate of Cain is the boundary between the world of reality and the world of fantasy/unreality. If you want to get a clue for who knows of this or who has been exposed to the idea - the Gate of Khaine in Warhammer 40k. Elly in Touhou (who is Cain). Though Command&Conquer takes a more sinister view of Cain and the Brotherhood of Nod.
But… There's a point to be had. Temple Prime is in Sarajevo. The land of Nod. East of Eden - which was in what is now Slovenia.
What does the slavic "Slov" mean/when is it used?
In old church slavonic, the root of Slov is used when addressing the purity of one like the virgin Mary.
Queen Tamar of Georgia is an interesting character.
If the Emperor had a Text to Speech Device. 13 sons.
Learn "our" comms. Just remember, the only place Q is going to be Q is on this platform.