Kate Middleton wore a symbolic pair of earrings connected to Princess Diana at the Royal Marsden Hospital on Jan. 14, when she visited cancer patients and staff and announced she is in remission.

Kate made a "strictly private" visit in December o personally deliver gifts to the people involved in her treatment.

Princess Kate reportedly made a secret visit to the Royal Marsden Hospital in London, where she previously underwent chemotherapy treatment, before Christmas. The Princess of Wales, 43, made her first solo public engagement in more than a year on January 14,

Kate Middleton didn't wear her engagement ring that once belonged to Princess Diana at the Royal Marsden Hospital in London on Jan. 14. Inside why and more about Princess Kate's new ring.

The Princess of Wales made a surprise return to the Royal Marsden Hospital to personally thank staff who looked after her during her cancer treatment on Tuesday. At such a critical moment in US history, we need reporters on the ground. Your donation allows us to keep sending journalists to speak to both sides of the story.

Kate Middleton made a surprise visit to the Royal Marsden Hospital where she received cancer treatment, following her diagnosis last year.

The Princess of Wales spoke with patients undergoing cancer treatment at the hospital, and when she arrived, per the Independent, the royal hinted that she'd been arriving at a back entrance in the past. “I was just saying, coming in the front entrance here, having made so many quiet, private visits, actually it’s quite nice," she said.

Princess Kate revealed this week that she had been a patient at the hospital last year during her cancer treatment.