Lavinia Whitelaw is a Shadowhunter in the Edwardian times.
Once over tea with Consul Charlotte Fairchild, Lavinia mentioned that, while Lucie Herondale was a nice girl, no one would want to marry her due to her "disadvantages."
She also remarked rudely on James and his friends, Matthew, Thomas and Christopher, and called them "that notorious bunch of hooligan boys."
- Due to Lavinia's remark, James and Matthew called themselves Shadowhooligans for some time.
- She is one of the people James hates.