A man in Florida impersonated a member of Saudi Arabia's royal family to arrange the theft of millions of dollars. 

The 47-year-old man, identified as Anthony Gignac, pleaded guilty to "identity theft and fraud" on Tuesday during a court hearing in Florida. 

Gignac said he was using "various aliases to make it appear that he was a member of Saudi's ruling al-Saud dynasty," according to Newsweek. 

The conman used the name "Sultan Bin Khalid Al Saud" - among other aliases - owned a Ferrari, and drove around with diplomatic license plates. 

"He falsely told others that he had diplomatic immunity and was required to check in with the U.S. Department of State every few hours," according to the Miami Herald. 

"Gignac was given gifts, including expensive paintings and jewelry, based on his false representations."

According to NY Post, authorities said Gignac used the fake identity to "persuade investors to put up millions of dollars for purported business opportunities that didn't exist."

Over the past two years, the 47-year-old, alongside his co-conspirators, stole $8 million from investors worldwide. It was reported that 26 victims were involved in the fraud schemes, according to the Miami Herald.

According to Business Insider, a single investor gave Gignac approximately $5 million.

In November, Gignac was caught using a fake passport while traveling from London to New York.

His arrest led authorities to launch an investigation. Authorities obtained a search warrant into the man's home, where they found a "Sultan" nameplate attached to the home's front door.

Inside the home, business cards with Gignac's aliases and titles, such as "His Royal Highness," "Prince," and "Sultan" were also found.

Gignac faces a maximum sentence of 20 years. His sentencing is scheduled to be set in August.

"The Sultan of Surfside"