Jace Herondale @nephilimwithgoldeneyes - Tumblr Blog

Early life

Jace was born to Stephen and Céline Herondale. While he was still in Céline's womb, Valentine Morgenstern constantly gave Céline doses of Ithuriel's blood to mix with her food, and she took it, not knowing what it really was. Ithuriel's blood made its way into unborn baby Jace's system, thus he was born differently from other Shadowhunters.

My own Version of Jace