Kate Middleton and Prince William have changed their profile photos to commemorate Remembrance — see the photos they chose and who else did the same.

Today marked the first major outing for the Princess of Wales since announcing completion of her chemotherapy treatments in September. The Royal British Legion Festival of Remembrance at the Royal Albert Hall is a sober affair—specifically a concert held to honor members of the military who have died while serving—and not exactly the place for sartorial risks.

Catherine, Princess of Wales, attended the annual Festival of Remembrance at Royal Albert Hall in London on Saturday, marking two months to the day since she announced she was “cancer-free.”