The royal toddler lives in Montecito, California with her parents and older brother, Prince Archie, and we imagine the close-knit family are throwing a fun party for little Lilibet in their stunning mansion.
We've seen some adorable photos and clips of sweet Lilibet – named after the late Queen Elizabeth's childhood nickname – over the past year, namely from the royal couple's Netflix docuseries. Take a look at the special moments below…
WATCH: Princess Lilibet and Prince Archie help out in the family garden
The whole family helped Lilibet blow the candle on her cake
We got a rare look at sweet Lilibet's first birthday celebrations in this cute snap - we adore how big brother Archie got involved blowing out his sister's candles, and Lili looked adorable in her party dress.
Harry and Meghan with Archie and Lilibet at Frogmore Cottage
We saw a very rare photo of the Sussex family all together with dad Harry carrying Lilibet on his shoulders and Meghan holding Archie - taken at their previous home, Frogmore Cottage in England.
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