Inside the extravagant wedding of billionaire Treasury Secretary Steve Mnuchin and 36-year-old actress Louise Linton

Treasury Secretary Steven Mnuchin, 54, married his 36-year-old fiancée Louise Linton on Saturday in front of a stunning list of Washington insiders and Wall Street elite.

It is Mnuchin's third marriage and Linton's second. Mnunchin, a former Goldman Sachs executive, met Linton, a Scottish actress, at a wedding in 2013, and the two got engaged in 2015.

See who was there in these photos from the star-studded event:

13 PHOTOS
Inside Steve Mnuchin's wedding and relationship with Louise Linton
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Inside Steve Mnuchin's wedding and relationship with Louise Linton
WASHINGTON, DC - JUNE 24: (Exclusive Coverage) (L-R) First Lady Melania Trump, President Donald Trump, Secretary of the Treasury Steven Mnuchin, Louise Linton, Vice President Mike Pence, and Second Lady Karen Pence pose at the wedding of Secretary of the Treasury Steven Mnuchin and Louise Linton on June 24, 2017 at Andrew Mellon Auditorium in Washington, DC. Louise Linton is wearing a custom Ines Di Santo gown with wedding ring and earrings by Martin Katz. (Photo by Kevin Mazur/Getty Images for LS)
WASHINGTON, DC - JUNE 24: United States President Donald J. Trump and first lady Melania Trump depart the White House in Washington, DC on June 24, 2017. The Trumps left to attend the wedding of US Secretary of the Treasury Steven Mnuchin and Louise Linton. The first lady is wearing a Gilles Mendel silk chiffon gown with Manolo Blahnik pumps. ( Photo by Ron Sachs-pool/Getty Images)
WASHINGTON, DC - JUNE 24: United States President Donald J. Trump and first lady Melania Trump depart the White House in Washington, DC on June 24, 2017. The Trumps left to attend the wedding of US Secretary of the Treasury Steven Mnuchin and Louise Linton. The first lady is wearing a Gilles Mendel silk chiffon gown with Manolo Blahnik pumps. ( Photo by Ron Sachs-pool/Getty Images)
WASHINGTON, DC - JUNE 24: United States President Donald J. Trump and first lady Melania Trump depart the White House in Washington, DC on June 24, 2017. The Trumps left to attend the wedding of US Secretary of the Treasury Steven Mnuchin and Louise Linton. The first lady is wearing a Gilles Mendel silk chiffon gown with Manolo Blahnik pumps. ( Photo by Ron Sachs-pool/Getty Images)
WASHINGTON, DC - JUNE 24: (Exclusive Coverage) Vice President Mike Pence (C) officiates the wedding of Louise Linton (L) and Secretary of the Treasury Steven Mnuchin (R) on June 24, 2017 at Andrew Mellon Auditorium in Washington, DC. Louise Linton is wearing a custom Ines Di Santo gown with wedding ring and earrings by Martin Katz. (Photo by Kevin Mazur/Getty Images for LS)
UNITED STATES - MAY 18: Treasury Secretary Steve Mnuchin testifies, as his fiancee Louise Linton looks on, during a Senate Banking Committee hearing in Dirksen Building titled Domestic and International Policy Update, on May 18, 2017. (Photo By Tom Williams/CQ Roll Call)
Steven Mnuchin (L) and his financee Louise Linton watch as US President Donald Trump speaks during Mnuchin's swearing-in ceremony as the next treasury secretary in the Oval Office of the White House on February 13, 2017 in Washington, DC. / AFP / MANDEL NGAN (Photo credit should read MANDEL NGAN/AFP/Getty Images)
US President Donald Trump (L) watches as US Vice President Mike Pence (out of frame) administers the oath of office to Treasury Secretary Steven Mnuchin (2nd L) watched by Mnuchin's fiancee Louise Linton in the Oval Office of the White House on February 13, 2017 in Washington, DC. / AFP / MANDEL NGAN (Photo credit should read MANDEL NGAN/AFP/Getty Images)
WASHINGTON, DC - JANUARY 20: U.S. Treasury Secretary nominee Stephen Mnuchin and fiancee Louise Linton arrive for the Presidential Inauguration of Donald Trump at the U.S. Capitol on January 20, 2017 in Washington, DC. Donald J. Trump became the 45th president of the United States today. (Photo by Saul Loeb - Pool/Getty Images)
NEW YORK, NY - NOVEMBER 07: Steven Mnuchin and Louise Linton attend the 2016 Library Lions Gala at New York Public Library - Stephen A Schwartzman Building on November 7, 2016 in New York City. (Photo by Gary Gershoff/WireImage)
UNITED STATES - JANUARY 19: Louise Linton, fianc� of Steven Mnuchin, right, President-elect Trump's nominee for Treasury secretary, attends his Senate Finance Committee confirmation hearing in Dirksen Building, January 19, 2017. (Photo By Tom Williams/CQ Roll Call)
Louise Linton smiles as her fianc�Steven Mnuchin, Treasury secretary nominee for U.S. President-elect Donald Trump, not pictured, speaks during a Senate Finance Committee confirmation hearing in Washington, D.C., U.S., on Thursday, Jan. 19, 2017. Mnuchin defended his record as an owner of a mortgage lender that was accused of unfair loan and foreclosure practices during the financial crisis. Photographer: Andrew Harrer/Bloomberg via Getty Images
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