A man who spent decades pretending to be a Saudi prince was sentenced on Friday to more than 18 years in prison for defrauding investors out of more than $8 million through his schemes.

Anthony Gignac, 48, has reportedly spent most of his life impersonating Prince Khalid al-Saud of Saudi Arabia, who is actually the 79-year-old governor of Mecca, and living luxuriously with fancy cars, expensive jewelry and a Miami penthouse — all while posting photos of his adventures on Instagram, The New York Times reported.

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In reality, Gignac is an orphan who was adopted by a Michigan family in 1977. He’s been arrested 11 times for “prince-related schemes,” according to the Times.

In March, he reportedly pleaded guilty to wire fraud, conspiracy to commit wire fraud, aggravated identity theft and impersonating a diplomat, the Times reported.

“Over the course of the last three decades, Anthony Gignac has portrayed himself as a Saudi Prince in order to manipulate, victimize, and scam countless investors from around the world,” Ariana Fajardo Orshan, the United States attorney for the Southern District of Florida, said in a statement. “As the leader of a sophisticated, multi-person, international fraud scheme, Gignac used his fake persona — Prince Khalid Bin al-Saud — to sell false hope.”

Prosecutors say the scams started once Gignac moved to California in 1987, the Times reported, and he got a state ID card in the real prince’s name. He also schemed in Michigan and Florida, and he’s reportedly used the royal name to lure investors into funding multiple worldwide ventures that weren’t real.

Once Gignac tried to buy a luxury hotel in Miami in 2017, the hotel’s owners hired investigators to look into the fake prince. A federal investigation spurred from the findings.