When Linda Danvers tried to take the place of pre-Crisis Kara Zor-El, she unknowingly won the heart of the pre-Crisis version of Superman. The two married, and had a daughter named Ariella Kent (R'E'L in Kryptonian). When Spectre came to send Linda back to the post-Crisis era, and return the pre-Crisis to its original state (and replace her with Kara), Linda agreed on the condition that Ariella would be spared. The Spectre agreed to her terms, and when all traces of Linda Danvers' existence were wiped from the pre-Crisis era, Ariella was left alone to wander the universe.

My name is Ariella Kent, Im the daughter of Linda danvers and superman

I was only 6 years old when the post crisis era ended and my mom died, she was replaced with Kara zor-el.

Some of you know me as the Destroyer of Worlds,

Some of you may know me as supergirl.

My name is Ariella kent, and this is my story