Louis is about to become one of the most popular baby names in the UK!
Kensington Palace made the announcement on Twitter saying that the little Royal's full title is His Royal Highness Prince Louis of Cambridge. Quite a mouthful for someone who still gets swaddled at night!
The Duchess of Cambridge gave birth earlier this week at St. Mary's Hospital. She looked ridiculously glowy just a mere handful of hours later when she stepped out with her husband and infant to greet the press.
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Prince George and Princess Charlotte got to meet Prince Louis soon after he was born and they could not have been cuter.
All hail, Prince Louis!