What is jeff jefferies wife?

As an AI language model, I do not have access to information about real people unless it is available publicly. However, Jeff Jefferies is a fictional character from the 1954 Alfred Hitchcock film "Rear Window." In the film, his wife is named Lisa Fremont and she is played by actress Grace Kelly. Lisa is a successful fashion model and Jeff's love interest, who helps him investigate a murder case from the safety of his apartment window.