Kristin M. Davis, 41, is notoriously known for running a high-end prostitution ring in the 2000s.

Known in New York tabloids as the "Manhattan Madam", Davis was questioned as part of the special counsel Robert Mueller's probe into Russian's interference in the 2016 presidential election in August.

She is also a close friend of Roger Stone, a former Trump campaign adviser who has become a target of Mueller's investigation.

She told CNN the FBI called her before raiding the duplex she shared with Stone following his arrest on Friday — but she told them she had moved out a week earlier.

Davis previously went to prison for running a prostitution ring and selling drugs, and also ran for governor of New York.

New York's notorious "Manhattan Madam" has come back into the limelight.

Kristin Davis, who was known for running a high-end prostitution ring in the 2000s, is a close associate to Roger Stone, who was arrested in the Russia investigation on Friday on charges that he lied to Congress and obstructed the probe.

Davis, who shared a New York duplex with Stone, told CNN that the FBI called her at 6 a.m. on Friday and told her they had a search warrant for the residence.

She said the Bureau called to let her know they were coming so she could get ready, but she told them she had moved out a week earlier and wasn't there, according to CNN.

Davis testified before a grand jury on August 10 as part of the special counsel Robert Mueller's probe into Russia's interference in the 2016 presidential election, during which she was asked about Stone, according to Good Morning New York.

Here’s everything we know about the Manhattan Madam: