Brooklyn Beckham skipped his sister Harper’s 15th birthday celebration amid their bitter family feud.

Harper was snapped celebrating her birthday Friday at Italian restaurant Sant Ambroeus in West Palm Beach, Florida, alongside her parents, David and Victoria, and her brothers Romeo, 23, and Cruz, 21. Romeo and Cruz’s girlfriends — Kim Turnball and Jackie Apostel, respectively — were also present.

Harper wore a white dress for the casual family outing, while her mom wore a tight-fitting black dress. David wore a white t-shirt under a suit jacket, while her brothers dressed down in t-shirts and denim.

The family celebration comes one month after Harper attempted to reconcile with Brooklyn by going to his Beverly Hills, California, home, shortly after celebrating her dad’s star-studded Walk of Fame ceremony in Hollywood.

In pics exclusively obtained by Page Six, Harper appeared to show up at Brooklyn’s residence unannounced and left seconds later without seeing him. A source confirmed to Page Six that neither Brooklyn nor his wife, Nicola Peltz, were home at the time.

But Brooklyn, 27, and Peltz, 31, accused the reconciliation attempt of being staged.

A rep for the couple told Page Six at the time, “That photographers were in place as the letter was hand delivered says it all — this was choreographed for the cameras.”

Brooklyn and Peltz have been openly feuding with his family since January, when the Cloud23 hot sauce founder wrote a scathing message on Instagram denouncing his famous parents and accusing them of trying to ruin his relationship with Peltz.

He shared that he did not want to reconcile with David and Victoria, and has since been noticeably absent from Beckham family appearances and celebrations.

Last month, fans accused Peltz of taking a thinly veiled dig at Harper in an Instagram post gushing about her new sister-in-law, Kenya Kinski-Jones.

Peltz shared a series of snaps from her older brother Will’s wedding to Kinski-Jones, calling the new member of her family her “dream sister” — despite Harper also being her sister-in-law.

Peltz wrote, “This wedding was truly one of the most beautiful things i’ve ever had the privilege of witnessing. willy, thank you for finally and officially giving me my dream sister, ken.”

She also praised her newest sister-in-law’s family — Kinski-Jones is the daughter of the late legendary music producer Quincy Jones and German actress Nastassja Kinski — calling them “incredible humans.”

“i am forever lucky to have the most incredible humans – the jones’ to call family. thank you for bringing so much love, warmth, beauty and pure magic into our lives,” she wrote. “my heart is so full. i love you willy and kenya cheers to you both.”