Police were called at 4.21am on Saturday to reports of a stabbing and found a 77-year-old man suffering from injuries to the chest, Scotland Yard said.
London Ambulance Service attended and the man was pronounced dead at the scene.
The suspect appeared in custody at Thames Magistrates’ court today charged with murder and possession of an offensive weapon. She has been remanded in custody to appear at the Old Bailey on Wednesday December 3.