The Lightwoods are a very old and very powerful family of Shadowhunters. They are members of the Clave, and the living family members currently all reside in the New York Institute. During the 1800s, they lived in London. They are known for their snobbish attitudes and disdain towards Downworlders and mundanes, though over time, they have become more tolerant of Downworlders. The members of the family often have Hebrew or biblical names.
The Lightwoods, as such an old family, have a great deal of wealth. They have lived in London, Idris, and New York at different periods of time, often with high positions in the Clave.