Fanfiction often takes liberties with established characters and storylines. It's possible that in some fanfictions Peggy Carter could be written as Tony Stark's mom, perhaps in a universe where timelines are messed up or there are some genetic experiments gone wrong or right depending on how the story is told. But we have to remember that this is completely different from the official Marvel lore which has its own set of family relationships for Tony Stark.
In some fanfictions, there could be creative interpretations where Peggy Carter is somehow related to being Tony Stark's mom. However, in the official Marvel canon, Howard Stark is Tony's father and Maria Stark is his mother.
Well, fanfiction is all about creativity and bending the rules. While it's not the case in the main Marvel storyline, in certain fan - created stories, authors might come up with a scenario where Peggy Carter has a role in relation to Tony Stark's birth or upbringing. Maybe through some time - travel or alternate universe concept. But the official story is clear that Peggy has no such relation in the normal Marvel Universe.
One common plotline could be time - travel. Maybe a character goes back in time and changes something that makes Peggy Carter become Tony Stark's mother instead of Maria Stark. Another could be some sort of alternate universe where the rules of genetics and family are different.
He would be more disciplined. Peggy Carter was a no - nonsense person, so Tony would likely grow up with a strong sense of order and responsibility. He might not be as reckless as he was in the original story. His genius would still be there, but it would be channeled in a more focused way, perhaps towards more strategic and patriotic inventions rather than just for the sake of innovation.
If Tony Stark were raised by Peggy Carter in fanfiction, it could drastically change the MCU timeline. For starters, Tony's personality might be different. Peggy was a strong - willed and disciplined person. Growing up under her influence, Tony might be more by - the - book and less of a maverick. His approach to technology could also be different. He might focus more on military applications that align with Peggy's values rather than the more commercial and sometimes unethical applications he pursued in the original timeline. Also, his relationship with Howard Stark would be complex. Instead of the distant and often troubled relationship they had, it could be one of mentorship from Peggy's perspective, with Howard having a different role in Tony's life.
Tony Stark was not one to be overly sentimental, but Aunt Peggy's funeral was different. As he entered the church, memories of the old tales of Peggy Carter flooded his mind. He remembered her as a symbol of strength and resilience. During the service, he couldn't help but think about how she was part of a generation that had laid the foundation for his own heroics. He knew that her legacy would continue to inspire him in his battles against evil.
Tony Stark could be involved in Aunt Peggy's funeral as a guest paying his respects. He might have heard stories about her from Steve Rogers and felt a sense of admiration for her. So he comes to the funeral to honor her and the legacy she left behind.
In this fanfiction, Tony at Peggy's funeral could be a moment of self - discovery for him. He might be surrounded by the reminders of a bygone era. As he stands there, he could be thinking about how Peggy's life and values are still relevant. He may even have an internal dialogue about how he can incorporate some of those values into his own actions moving forward. There could also be some tension if there are people at the funeral who don't quite trust Stark, and he has to deal with that while still showing his respect for Peggy.
I'm not sure if there is a specific fanfiction with that exact premise. There are countless fanfictions out there, so it's possible but not widely known to me.
Steve Rogers' old comrades from the Howling Commandos might show up. They were close to Peggy and would surely be there to pay their respects.
Yes, Peggy Carter is in the comics. She's an important character in the Marvel universe.
A less obvious but still common theme is the exploration of different cultures. Sometimes the OC comes from a different background, and the story explores how that culture interacts with Peggy's world. This can lead to some really interesting storylines, like how different values and traditions play a role in solving problems or in the characters' relationships.