He has a slim, muscular build, and is about 5'11". His face is described as being pretty and angular, and Clary often refers to him as beautiful and leonine, with a narrow mouth. His eyes were much lighter in City of Bones, City of Ashes, and City of Glass; Clary describes his eyes and hair as darker in City of Fallen Angels. His eyes are brown with flecks of gold that lighten and darken with his moods. In The Bane Chronicles; Magnus describes Jace as being the gold to Alec's silver. Like all other Shadowhunters, he is covered in thin, pale scars from years of applying various magical runes with a stele for battle and healing purposes. It is said that Jace is seventeen years old, though that was assuming he was Valentine (or Michael Wayland's) son, and his real age is between a few years younger than Jonathan Christopher and a year or so older than Clary. Jace is also left-handed (like Valentine). He has often said (and tried to prove) that the only trait he got from his father was his attitude. He is described to be extremely good looking. Jace is portrayed by Jamie Campbell Bower in the film adaptation of the book and Dominic Sherwood in the television series. Family In City of Bones, Jace lives with his adoptive family, the Lightwoods, and is seen as the brother of the Lightwood children. Later, he is told that he is the son of Valentine and Jocelyn Morgenstern, and not Michael Wayland as he had been told. At this time, he is also told that Clary Fray is his sister. In the end, it is revealed that he is actually Stephen Herondale and Celine Herondale's son and that Clary is not related to him. He and Clary have a conversation at the end of City of Glass in which he confesses that he doesn't know who he is, referring to his last name. Clary confirms that he is a Lightwood, and Jace accepts that, correcting people throughout City of Fallen Angels when they referred to him as "Jace Herondale". At the end of City of Heavenly Fire, Jace chooses to take on the Herondale name. Jace is also related to Will Herondale former leader of the London Institute and husband of Warlock Tessa Grey. Jace's romantic interests Clary Fray: Jace begins to fall in love with Clary Fray