Once again the royal family are absolutely melting our hearts.
This time it is with the adorable French nickname the Duke of Cambridge has given his daughter Princess Charlotte.
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Honestly, it is actually the cutest!
Can you hear what Prince William calls Princess Charlotte in this video?:
It turns out Prince William calls his 4-year-old girl 'Mignonette', which translates to 'delicate'.
Royal fans were quick to pick up on the loving moniker after the Kensington Royal Instagram account shared a video of the father-of-three and his wife Kate Middleton playing together in the Duchess’ Back To Nature garden.
"Anyone notice right before he asked Charlotte to push him, he called her by a lovely nickname," one Twitter user pointed out. "William called her 'Mignonette' which means 'delicate'".
Another added: "William is calling his daughter 'Mignonette'! How sweet."
We couldn’t agree more!