Residence: New York Institute
Allegiance: The Clave
Significant Other/s: Simon Lewis (love interest)
Father: Robert Lightwood
Mother: Maryse Lightwood
Sibling/s: Alec Lightwood
Max Lightwood (deceased)
Jace Lightwood (adoptive)
Hair color: Black
Eye color: Dark brown
Isabelle froze, her spoon poised dangerously. "What did you say?"
Jace edged toward the fridge. "I said I'm going to look for a snack to eat."
That's what I thought you said." Isabelle turned her attention to the soup.”
― Cassandra Clare, City of Bones
Isabelle at first shares the Lightwood family's snobbish attitude toward mundanes and Downworlders. However, after meeting Clary and Simon, her attitude towards mundanes begins to change as she befriends them. Isabelle has a great sense of style and is very fashion conscious. She is also somewhat promiscuous. Isabelle is a fiercely loyal friend but is volatile and prone to mood swings. Isabelle is described as very flirtatious. She dates many different boys, especially boys that her parents won't approve of…
The introduction,personality, and caption is taken from Shadowhuners Wikia.