Well, that was harsh!

On Sunday, June 18, the Kensington Palace Instagram account released a series of sweet photos showcasing sentimental memories between Prince William, his father, Prince Charles, and his son, Prince George, in celebration of Father’s Day — but the shoutout surprisingly excluded William's daughter, Princess Charlotte!

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One darling moment shows a much younger Charles, resting his head and hands on a shepherd’s hook while baby-faced William and Harry copy his stance. A second snap — taken in 2016 on the Cambridges’ family tour to Canada — shows the Duke hugging his son, George, 3, in a rare embrace.

It's true the snaps are adorable to say the least, but the palace’s decision not to include the father-of-two’s daughter, Charlotte, in the tribute has royal watchers annoyed.

"Odd there's only picture with his son? Where's his daughter?" one Insagram user wrote, with another adding, "Where's Charlotte? Isn't William also a dad to Charlotte or do only boys matter?"

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"It would have been nice for you to have included a photo of William with his daughter, too. George isn't his only child," another follower remarked.

As Father's Day is a celebration for the whole family — not just of the bond between father and son! — it seems fans believe a dedication to the future-King’s endearing relationship with his youngest daughter would have made for a welcome addition to the message.

With her brother by her side, Princess Charlotte, 2, recently made another highly-anticipated appearance for the annual Trooping the Colour RAF flyover in celebration of Queen Elizabeth's 91st birthday on Saturday, June 17.

Dressed in a pink, polka-dot pink dress, the tot sat on top mom Kate Middleton's hip as she followed George’s lead and waved to royal onlookers from the Buckingham Palace balcony.

Though the event was held in honor of Her Majesty The Queen, with their hilarious antics and animated facial expressions, George and Charlotte totally stole the show!

This story originally appeared on NowToLove.com.

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