Kate Middleton didn't wear her engagement ring that once belonged to Princess Diana at the Royal Marsden Hospital in London ...

Kate Middleton visited the Royal Marsden Hospital in London on Tuesday, Jan. 14, where she received chemotherapy treatment after her cancer diagnosis last year. See all the photos here ...

Kate Middleton has made an emotional visit to the Royal Marsden Hospital in London to personally thank staff who took care of ...

Angela Terry, a lung cancer patient, tells PEOPLE that Kate's "gentle eye contact" and " level of connection " left an ...

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

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

Princess Catherine surprised cancer patients at the same hospital where she was treated last year for her type of cancer.

PRINCESS Kate made a subtle nod to a key royal with her £3,000 handbag during a visit to the Royal Marsden Hospital in London ...

During Princess Kate's heartfelt visit to Royal Marsden Hospital in London, Kate held onto an accessory with deep ties to the ...

The Princess of Wales made an unannounced visit to the Royal Marsden Hospital this week - and her humility as she spoke to ...

The Princess of Wales made a surprise return to the Royal Marsden Hospital to personally thank staff who looked after her ...