Gabriel "Gabe" Stacy
Secret, known to Spider-Man, Mary Jane Watson, Sarah Stacy, and Norman Osborn.
Place of Birth
Amazing Spider-Man #509
Amazing Spider-Man #512
The tests revealed text stating that Gwen had been pregnant and had twins. He collected DNA from the grave of Gwen Stacy and prooved that the twins, Sarah and Gabriel (who had been threatning and attacking him and his family) were her children.