Board Thread:Lore Discussion/@comment-5632187-20130119213241/@comment-98.28.88.47-20130828135746

That doesn't really mean that they're related though, they just have certain similarities.

Consider this: The Gwynevere that we meet in Anor Londo is an illusion created by Gwyndolin to retain a sense of power and awe so that the Chosen Undead would go along with his desires. Knowing this, let's take a look at Gwyn, Gwyndolin, and Gwynevere in the game, yes, Gwyn is bigger than your normal human or undead, and Gwyndolin is certainly taller, but neither of them are nearly as big as Gwynevere's illusion, so it's at least 99% likely that Gwynevere is definitely not giant sized, meaning that if Seath tried to... make babies with her then he'd likely kill her in the process.