Notes, sent to ex-Buckingham Palace steward Cyril Dickman, describe how a young Prince William “swamped” his new baby brother with “an endless supply of hugs and kisses”.
The handwritten correspondence is to be sold at auction later. Photos, Christmas cards and cake from the Queen’s wedding will also go under the hammer.
The letters form part of about 40 lots from Mr Dickman’s former estate, which is due to be sold. Whats shocking is they are only suspected to fetch around $1000.
In one letter – on headed Kensington Palace paper – dated 20 September 1984, Diana thanked Mr Dickman for “such a lovely card” following the birth of Prince Harry. She wrote: “William adores his little brother and spends the entire time swamping Harry with an endless supply of hugs and kisses, hardly letting the parents near!”
“The reaction to one tiny person’s birth has totally overwhelmed us and I can hardly breathe for the mass of flowers that are arriving here!”
In another, dated 17 October, 1992, she says how both young princes “are well and enjoying boarding school a lot, although Harry is constantly in trouble!”.