While Jonathan is the biological son Valentine raised, he still saw him primarily as a weapon in his conquest than a son, and thus raised him quite brutally and harshly, in the manner he himself was brought up, tempering him into a soldier.
Sebastian Morgenstern, born Jonathan Christopher Morgenstern, was the son of Valentine and Jocelyn, and the older brother of Clary Fairchild. As a result of experiments done on him by his father, Sebastian was a Shadowhunter born with demon blood.
With the "truth sword" still in Valentine's hands, Jace also learned he wasn't his son, and was thus not Clary's brother. Jace was able to take Valentine down but stopped short of killing him because Clary reminded him that they needed the Cup, and Valentine may be the only one who knew where it was.
Jonathan Morgenstern (son) Clary Fairchild (daughter) Jace Herondale (foster son)
Clary learns that Valentine Morgenstern, who is supposed to be long dead but truly is not, the main antagonist of the series, is her biological father and her mother's husband. At the end of City of Bones, Valentine tells them that Clary and Jace are siblings — which, as they discover later in the series, is a lie.
Stefan Lucian Herondale is the 19-year-old eldest child of Clary and Jace Herondale.
The couple run the New York Institute together and are currently engaged. As heroes of the Mortal and the Dark wars, their love story became famous among other Shadowhunters.
Dr. Rouse has trapped Clary inside the room, arguing that Clary must still keep the blood oath even though the spell is stopped. Dr. Rouse will force Clary to be impregnated by a demon, to give birth to a warlock — a dying breed.
Parabatai bond: Due to her parabatai bond with Alec Lightwood, Izzy is able to call on more strength in battle and is able to use certain runes or magic exclusive to parabatai. The runes drawn on her by, or shared with, Alec also give a considerably stronger effect.
Clary is 9 months pregnant with their first child and is due any day now, and though they are both beyond excited to meet their baby, they are also extremely nervous, they have so little experience with children, Jace had helped out a bit with Max when he had first gone to live with the Lightwoods, but not much, and ...
Clare is sharing the original draft version of the scene where Jace kisses Alec to reassure him about Magnus: “Drop it, Jace,” Alec said in a warning tone. Jace was having none of being warned. “Magnus says it's because you're hung up on me.
Clary Fairchild was unwittingly given an exceptional amount of angel blood, particularly Ithuriel's, while in her mother's womb by Valentine. This connection with Ithuriel allows her to see and draw old runes—those not documented in the Gray Book—sent to her through visions by the angel.
Despite the fact that he was half-human, the Seelie Queen took a liking to him and made it known that he was welcome at her court, which he never would have had without her. She treated him as a full faerie—better, even—and swiftly punished anyone who treated him badly.
This is actually a really big part of the plot in the first three books. At the end of City of Bones, Valentine Morgenstern, reveals to Clary and Jace that they are siblings, and his children. Jace is not Jonathan Christoper Wayland, as he believed, but Jonathan Christoper Morgenstern.
'Especially because Jonathan never got that from his parents – he had no concept of what platonic love was – so he really thinks of Clary as his saviour and that she'll be the one to save him.
Jonathan Christopher Morgenstern, also known as Sebastian Verlac, was the first child of the late Valentine Morgenstern and the late Jocelyn Fairchild and the older brother of Clary Fairchild.
Siblings can be Parabatai, but it doesn't usually happen, cause siblings already have a different type of bond. It normally only happens with twins. Weren't Arthur and Andrew also going to be Parabatai before they were trapped in Faerie?
Born the middle child and only daughter of Maryse and Robert Lightwood, Isabelle is the sister of three brothers: the eldest, Alec, the youngest, Max, and Jace Wayland, who was taken in by the family when they were young.
The Greek word parabatai can also translate to "violator, transgressor", or "the one who sins".
Despite this, Valentine still took Jocelyn's comatose body and kept her with him at Renwick's. When Valentine was told about Jocelyn's daughter, Clary, he initially assumed that she was Jocelyn and Luke's child rather than his own daughter, though he did find out the truth eventually.
She searched for Clary and found her on a farm speaking to the angel Ithuriel. In her true form, she brutally killed the angel by ripping out his heart and took a sliver of Clary's soul. She completed Magnus's potion with Clary's soul and gave the drink to Jace, its effect on him instantaneous.
Sacrifice has always been a major theme on this show, so it made sense for Clary to have to give up what she loved most in order to fulfill her destiny. The fact that she and Jace still ended up together in spite of that was a welcome treat that I wasn't expecting.
Magnus and Alec have just adopted their first kid, Max, and are figuring out how exactly fatherhood works.
He stays immortal. Alec doesn't die, but still, Magnus chooses to stay immortal (the same with his past lovers). In both theories, Magnus lives forever. With the procondition he doesn't die of course, but I think he survives.
Eventually, he admitted his feelings to Clary, and they became a couple. They later realized Clary was still in love with Jace, and they were better off as friends. Even though Simon was heart broken, he and Clary promised each other to stay each other's best friend and that's what they've done.