The announcement of the gender and other details of the baby was made by the age-old custom of placing a proclamation on a dark wooden frame on an ornate easel behind the railings on Buckingham Palace's forecourt.
The brief bulletin, on palace-headed foolscap paper, usually confirms the sex of the baby and the weight, but gives few other details.
The easel will be the same one used to announce William's birth in 1982.
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