Did Loki know that Antonia Dreykov was alive?

Question

In the very first Avengers movie, Loki taunts Natasha by telling her that he knows all the horrors that she committed in the name of Hydra. That being said, he had the Tesseract and even without it he was able to use magic.

Is there a chance that he knew about Antonia Dreykov being alive as well as her father? If that's the case, do you think that he would have used that knowledge to mess with Natasha's head even further if given the chance, since he was technically under the same conditioning that she was?

Answer 1

Unlikely.

Even with the Tesseract, MCU Loki wasn't omniscient, or psychic. He indicated that his knowledge of Natasha was based on information given to him by Clint Barton (Hawkeye), whom he'd enthralled using the Scepter.

NATASHA: It's really not that complicated. I got red in my ledger, I'd like to wipe it out.

LOKI: Can you? Can you wipe out that much red? Dreykov's daughter, São Paulo, the hospital fire? Barton told me everything. Your ledger is dripping. It's gushing red and you think saving a man no more virtuous than yourself will change anything? This is the basest sentimentality. This is a child at prayer. Pathetic! You lie and kill in the service of liars and killers. You pretend to be separate, to have your own code, something that makes up for the horrors. But they are part of you. And they will never go away.

_{Avengers (2012)}

Since Barton wasn't aware (as far as we know) that Antonia Dreykov was still alive, it's unlikely that Loki knew that either.