Prince William was "saddened" to hear about the death of a 111-year-old woman he visited after she complained about her birthday cards from the Queen, St James's Palace has revealed.
Catherine Masters wrote to Buckingham Palace in 2009 after receiving the same card five years in a row.
It prompted a surprise visit from the prince who apologised in person.
Ms Masters had been a resident at the The Grange Nursing Home in Stanford in the Vale, Oxfordshire since 2006.
She wrote to the Queen to say she was wearing the same outfit in five of the cards she had received.
Her complaint led to her receiving an updated card in 2010 which showed the monarch wearing blue, rather than the yellow outfit Ms Masters objected to.
On opening the card, she said: "Oh look, it's blue. That's lovely, that'll do."
Her grandson Robert Mcinnes said: "The family are very sad and think she had a phenomenal life in those 111 years."
Cards are traditionally sent from the Queen to people celebrating their 100th birthday. This is followed by another card for the 105th birthday and for every year after that.
A St James's Palace spokesman said: "Prince William was saddened to hear the news".