The son-in-law of a Russian oligarch pleaded guilty to lying to the FBI about his contacts with a former campaign associate of President Trump as part of special counsel Robert Mueller’s investigation into Moscow’s meddling in the 2016 election.

Alex Van Der Zwaan was charged with criminal information and entered his plea in federal court in Washington, D.C., on Tuesday.

Van Der Zwaan “willfully and knowingly make materially false, fictitious, and fraudulent statements” about his communications with Rick Gates, a former Trump campaign aide and business partner to Paul Manafort.

The court papers, filed on Friday, say his last contact with Gates came in August 2016 and involved “an innocuous text message.”

He also lied about his contacts with “Person A,” whom he talked with in 2014.

Van Der Zwaan also spoke with Gates and “Person A” about the report in September 2016, but deleted and did not turn over emails about the meeting, the documents say.

Van Der Zwaan, according to his LinkedIn page, works in the London office of prominent New York law firm Skadden, Arps, Slate, Meagher and Flom.

The company said it “terminated” Zwaan in 2017 and has been cooperating with authorities, according to a statement.

Gates and Manafort, who ran Trump’s campaign for several months in 2016, have been charged by the special prosecutor with laundering millions of dollars they were paid by a Kremlin-connected Ukrainian politician Viktor Yanukovych.

Reports say Gates is prepared to plead guilty to fraud-related charges and testify against Manafort, the Los Angeles Times reported Sunday.

Van der Zwaan is the Russian-speaking son-in-law of Russian-Ukrainian oligarch German Khan. Van der Zwaan is married to Eva Khan.

German Khan made his billions through financial and industrial investment group Alfa Group and in oil — as one of the heads of TNK-BP, BP’s Russian joint venture.

Bloomberg put Khan’s net worth at $9.7 billion.

The Telegraph quoted Khan as referring to “The Godfather” as a manual for life and that he watches the movie every few months.

The report, according to Bloomberg News, was produced in 2012 by Skadden at the request of Manafort to show that the Ukrainian government’s prosecution and conviction of Tymoshenko was not politically motivated, accusations raised by the United States and European nations.

At the time, Manafort was the political adviser to Yanukovych, Tymoshenko’s rival.

Tymoshenko, who served as prime minister for several months in 2005 and between December 2007 and March 2010, was sentenced to seven years in prison for embezzlement.

Van Der Zwaan was charged in a “criminal information,” a document that prosecutors file when a defendant plans to take a plea.

He has a court appearance Tuesday afternoon in federal court in Washington, D.C., where he will plead guilty to the felony charge, the Washington Post reported.