Libbie Mugrabi pleads not guilty in Hamptons housekeeper menacing case

She went from the royal court to criminal court.

Upper East Side socialite Libbie Mugrabi attended a gala honoring Prince Harry and Meghan Markle on Tuesday night, and was in a Hamptons courtroom the next morning pleading not guilty to charges that she attacked a former housekeeper.

The hat designer and art collector appeared in Southampton Town Justice Court in a chic red dress and black blazer, with a red heart-shaped purse.

Her lawyer, Arthur L. Aidala of Aidala, Bertuna & Kamins, told Page Six when reached for comment: “Libbie pleaded not guilty to all charges today. We were given the initial packet of evidence which we are reviewing. We are confident that this matter will be resolved in Ms. Mugrabi’s favor shortly.”

As previously reported, police allege Mugrabi, 43 — the ex-wife of billionaire Andy Warhol collector David Mugrabi — is accused of breaking her ex-employee’s cellphone and threatening her with a knife and mop handle over the summer.

She was arrested last month at her Sag Harbor home – and cops have charged her with menacing, criminal mischief and criminal possession of a weapon.

Mugrabi is accused of breaking her ex-employee’s cellphone and threatening her. Dave Benett/Getty Images for Lib

In a subsequent interview with the Post, Mugrabi denied the allegations against her and claimed she was the victim.

She said that her 10,000-square-foot home was hijacked while she was away by “workers who were not supposed to be living there. They weren’t doing any work. They were glampin’ in the Hamptons.”

The socialite was spotted at Art Basel Miami in a “Free Libbie” shirt. Libbie Mugrabi

After her initial arrest, the socialite was released without bail following an arraignment, sources said.

She was spotted this month at Art Basel Miami Beach, perusing art and was cheekily “dressed in an orange jumpsuit with the words ‘Free Libbie’ on it,” sources said.

She’d also made “Free Libbie” gear as part of her eponymous haute trucker hat line and hosted a pop-up store at the W Hotel, as well as a VIP dinner during the art fair.