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Reality royal Prince Lorenzo Borghese engaged to model Dasha Melgarejo

Prince Lorenzo Borghese , Dasha Melgarejo.
Prince Lorenzo Borghese is engaged to Dasha Melgarejo.dashaxana/Instagram

Former “Bachelor” star Prince Lorenzo Borghese, 52, is a bachelor no more.

Borghese got engaged to longtime girlfriend — model Dasha Melgarejo — in Bora Bora, a source tells Page Six.

The couple have been posting pictures on boats from their vacation on the French Polynesian Island.

We’re told they plan to get married next September at the Borghese Chapel, located in the Basilica di Santa Maria Maggiore, in Rome, Italy.

We hear the prince popped the question on vacation in Bora Bora. dashaxana/Instagram

“The chapel is a very special place to Lorenzo and the family,” says another source. 

Borghese is best known for appearing on the reality dating show “The Bachelor” in 2006. He later went on to star on “Celebrity Big Brother UK” in 2012.

The couple both work in animal advocacy, and he is cofounder of Animal Aid USA.

He also runs a pet care line called Royal Treatment.

We hear they plan to marry at his family’s chapel in Rome. dashaxana/Instagram

The Prince also wrote a novel, called “The Princess of Nowhere,” about his ancestor’s marriage to Napoleon Bonaparte’s sister.

The couple have made appearances on the social scene, including Kimberly Guilfoyle’s birthday bash earlier this year, as well as the Miami Grand Prix and… the Puppy Super Bowl.

As far as his bonafides go, Borghese’s father is Prince Francesco Marco Luigi Costanzo Borghese, and his mother is Amanda Borghese. His paternal grandmother was Princess Marcella Borghese.

The couple loves animals. dashaxana/Instagram

He also started South Beach Brewing Company in Miami, Florida.

A rep for Borghese did not return request for comment.

He previously dated fellow reality star, socialite Tinsley Mortimer and another “Real Housewives of New York City” star, Sonja Morgan.

“I haven’t watched “The Bachelor” in years — I didn’t even watch my season, honestly,” he recently told the Miami New Times.