London - While Charlotte was the centre of attention on Thursday, her mother’s new "winter blonde" hairdo also drew admiring glances.
Her shining locks, newly woven with golden brown and honey highlights, are perfect for the darker months, experts say.
"It’s is by far the best time to go golden," says celebrity hair colourist Daniel Galvin, whose clients have included Twiggy, Princess Diana and Madonna.
"We get lots of women coming in with sun-bleached locks and saying mournfully they suppose they ought to go darker for winter. We don’t recommend that at all. As ever, Kate has got it just right."
The flat, bleak light of winter can be harsh on skin, making it appear dull, he said.