Princess of Wales announced she had finished chemotherapy treatment and that she was "looking forward to being back at work"—and it seems that time has come even sooner than fans expected. The 42-year-old royal—who serves as joint patron of the Royal Foundation alongside husband Prince William—attended a meeting for the Royal Foundation Centre for Early Childhood at Windsor Castle on Sept.

Kate Middleton attended an official royal appointment for the first time since she completed her chemotherapy treatment.

Kate Middleton is officially back to work. On Tuesday, September 17, the Princess of Wales, 42, made her big return to royal duties after finishing preventative chemotherapy earlier this month. This marks her first official engagement since she publicly revealed her cancer update video.