The Essence of Jealousy

The Guardian ruled
With his siblings by his side
A brother and sister one of them destined for his throne
Unannounced his time came, the father, he passed away
Who would be his rightful heir?
He did not get to say
A feud about the claim to the title of guardian and his grave
The brother he ruled from above
The sister from below
Raising up the waters, she didn't know
That the Dissonance settled in