It's the return of Prince Louis!
Louis grabs hold of his grandfather, Prince Charles' hand in the sweet photo, which appeared in the BBC One documentary, Prince, Son and Heir: Charles at 70.
Royal mom of three Kate Middleton is all smiles in a navy-and-white polka-dot dress as she carries the baby prince (who appears to have darker hair than his siblings!) in her arms.
And Louis has clearly inherited the signature Cambridge cheeks. Big brother Prince George was the first to show off his pinch-worthy cheeks when proud parents Will and Kate carried him onto the steps of the Lindo Wing after he was born on July 22, 2013.
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But William also says he wishes that his dad would slow down enough to be able to spare more time for them.
"It's something I'm working more heavily on, put it that way," William, 36, said in the documentary, which aired on BBC One this week. "I think he does have time for it, but I would like him to have more time with the children."
Charles's wife, Camilla, Duchess of Cornwall, 71, told the program that he is great with her grandchildren. "He will get down on his knees and crawl about with them for hours, you know making funny noises and laughing and my grandchildren adore him, absolutely adore him," she says. "He reads Harry Potter and he can do all the different voices and I think children really appreciate that."