Victoria Siegel, whose family starred in the 2012 documentary The Queen of Versailles, was found dead in their Windemere, Fla. home, The Orlando Sentinel reports. She was 18.

Siegel was discovered unresponsive by deputy sheriffs at the family's mansion a little after 2 p.m. on Saturday, Orange County sheriff's spokesman Jeff Williamson said. She was taken to the hospital where she was pronounced dead. The cause of death is still being determined.

Her mother Jacqueline Siegel acknowledged her daughter's death on Facebook, writing: "It is with great sadness that we ask you to respect our privacy during this tragic time and the loss of our beloved daughter, Victoria. Thank you all for your prayers and for your support. As more information comes out the family will share it, until that time there is no comment."

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Siegel is survived by her mother Jacqueline, her father David Siegel and seven siblings. Together, the family was the focus of Lauren Greenfield's documentary that followed the family's attempt to build an extravagant mansion in the midst of a financial crisis. The family most recently appeared on Celebrity Wife Swap last week.