<P> The story arc "Sins Past" by J. Michael Straczynski in The Amazing Spider - Man #509--514 (August 2004--January 2005) reveals Norman Osborn, the Green Goblin's alter ego, fathered twins, a boy and a girl, with Gwen Stacy, to whom she gave birth while in France shortly before her death . She vowed she would raise them with Peter (despite the fact that he was not aware of Gwen's infidelity) and refused to allow Norman access to them . Seeing her as a threat to his potential heirs, the Green Goblin killed Gwen . Norman Osborn then raised Gwen's two children, a boy and a girl named Gabriel and Sarah . </P> <P> Straczynski later stated he originally wanted to make Peter Parker the father of Gwen's kids but the editors vetoed the idea . They felt it would age Peter Parker too much if he had two adult children . The whole creative and editorial team then decided Norman Osborn would be the father . In an e-mail to the comic book website Newsarama, Straczynski claimed he regretted the version of "Sins Past" that went to press, and he had hoped to "retcon" it out of continuity during the events of the then - recent "One More Day" storyline: "I wanted to retcon the Gwen twins out of continuity, which was something I always assumed I could do at the end of my run . I wasn't allowed to do this, and yes, it pissed me off ." In the original plans for "One More Day", the story would have ended with Gwen Stacy being resurrected by Mephisto's reality - warping spell along with Harry Osborn, but it was eventually decided to let her remain dead . Her son, Gabriel, has reappeared in subsequent stories . </P> <P> In the Clone Conspiracy storyline, a flashback revealed that Gwen Stacy was conscious during Spider - Man and Green Goblin's battle on the bridge and as she was falling to her death . She overheard Green Goblin and Spider - Man's conversation . This caused her to discover Peter is Spider - Man and was angered by Peter keeping this secret and his involvement in her father's death . </P> <P> In the present, Gwen is supposedly revived by the Jackal with his clones . The Jackal claims that this one is not a clone but the real Gwen who was harvested from her remains and still remembers everything in her life, including her death . The Jackal offers Gwen the opportunity to be his business partner as he tries to change the world with his new technology . Gwen is hesitant about this new life at first but accepts it when the Jackal shows that he has reanimated the clone of her father, who is much better than he was before he died . When Spider - Man arrives at the incorporation and discovers the Jackal's experiments, he is surprised by Gwen's presence and notes that unlike the other people he revived, who are with clones by the Jackal, Gwen does not trigger his spider - sense, making him wonder if she was the real one, but he is attacked by the "reborn" Doctor Octopus before he can question the issue further . </P>

When does gwen find out peter is spider man