“Best. Day. Ever. Married the love of my life,” Armstrong, 50, wrote in an Instagram post, sharing photos of the nuptials.
The couple, who have been engaged since 2017, hosted an intimate ceremony at Château la Coste in France, which People magazine called “a picturesque venue complete with vineyards and scenic French views.”
“Only close friends and family, including the couple’s children, attended the ceremony, which Hansen called ‘the perfect elopement,’” the entertainment news site reported.
The couple share two children: Max, 13, and Olivia, 11. Armstrong also has a son Luke, 22, and twin daughters, Grace and Isabelle, 20, with his ex-wife, Kristin Richard, according to People.
Armstrong, a seven-time Tour de France winner, closed his post with thoughtful reflections on his new bride.
“Anna, you have been my absolute rock the past 14 years and let me be clear, I would not have survived them without you,” he wrote, adding, “I am so proud of the couple we have become — It took us doing the work, the really hard work, and I am so glad that we did. I love you immensely and will always be here for you and our family.”
Lance Armstrong through the years 392756 03: Cyclist Lance Armstrong, the 2001 Tour de France winner, attends a ceremony on the steps of the James A. Farley Post Office August 2, 2001 in New York City. Armstrong was congratulated by city leaders and postal officials. (Photo by Mario Tama/Getty Images) (Mario Tama/Getty Images)
Lance Armstrong through the years CAP' DECOUVERTE, FRANCE - JULY 18: Lance Armstrong of the USA riding for the US Postal-Berry Floor team rides his bicycle during the individual time trial during stage twelve between Gaillac and Cap' Decouverte, of the Tour de France on July 18, 2003 in France. (Photo by Robert Laberge/Getty Images) (Robert Laberge/Getty Images)
Lance Armstrong through the years 14 Jan 2002: Torchbearer Lance Armstrong passes the Olympic Flame to a cauldron during the 2002 Salt Lake Olympic Torch Relay in San Diego, California. DIGITAL IMAGE. Mandatory Credit: Todd Warshaw/Pool/Getty Images (Todd Warshaw/Getty Images)
Lance Armstrong through the years LOS ANGELES, CA - JUNE 07: (L-R) Lance Armstrong and Anna Hansen attend the Babes for Boobs live auction benefiting Susan G. Komen LA at El Rey Theatre on June 7, 2018 in Los Angeles, California. (Photo by Tibrina Hobson/Getty Images for Babes for Boobs) (Tibrina Hobson/Getty Images for Babes for Boobs)
Lance Armstrong through the years 392783 01: New York City Mayor Rudolph Giuliani honors Tour de France bicycle champion Lance Armstrong August 2, 2001 on the steps of the main Post Office in Manhattan. (Photo by Diane Cohen/Getty Images) (Diane L. Cohen/Getty Images)
Lance Armstrong through the years DUBAI, UNITED ARAB EMIRATES - OCTOBER 06: Lance Armstrong rides along cyclists during "Ride With Lance" at Al Qudra Cycling Track on October 06, 2020 in Dubai, United Arab Emirates. (Photo by Francois Nel/Getty Images) (Francois Nel/Getty Images)
Lance Armstrong through the years Kevin Bacon, Kyra Sedgwick, Sheryl Crow and Lance Armstrong ***Exclusive*** (Photo by KMazur/WireImage for INTERSCOPE RECORDS) (KMazur/WireImage for Interscope Records via Getty Images)
Lance Armstrong through the years PERRY, IA - JULY 23: Lance Armstrong poses for photographs and is greeted by well wishers before departing at the start of the third day of the RAGBRAI en route to West Des Moines on July 23, 2013 in Perry, Iowa. (Photo by Matthew Stockman/Getty Images) (Matthew Stockman/Getty Images)
Lance Armstrong through the years Yellow jersey leader Lance Armstrong powers on during the 2004 Tour de France stage 16 mountain time trial from Bourg d'Oisans to L'Alpe d'Huez. Armstrong was the only rider to complete the stage in under 40 minutes, thus securing his 21st yellow jersey. | Location: Bourg d'Osians, France. (Photo by Tim de Waele/Corbis via Getty Images) (Tim DE WAELE/Corbis via Getty Images)
Lance Armstrong through the years 392810 02: Champion cyclist Lance Armstrong presents U.S. President George W. Bush with a bicycle August 3, 2001 in the East Room of the White House in Washington, DC. The bicycle is a replica of the one Armstrong used last month in his third Consecutive Tour de France win. (Photo by Mark Wilson/Getty Images) (Mark Wilson/Getty Images)
Lance Armstrong through the years Cycling : Tdf 2002, Stage 5, Armstrong Lance, Tour De France, Ronde Van Frankrijk, Soissons - Rouen, (Photo by Tim De Waele/Getty Images) (Tim de Waele/Getty Images)
Lance Armstrong through the years AUSTIN, TX - JANUARY 14: In this handout photo provided by the Oprah Winfrey Network, Oprah Winfrey (R) speaks with Lance Armstrong during an interview regarding the controversy surrounding his cycling career January 14, 2013 in Austin, Texas. Oprah Winfrey’s exclusive no-holds-barred interview with Lance Armstrong, "Oprah and Lance Armstrong: The Worldwide Exclusive," has expanded to air as a two-night event on OWN: Oprah Winfrey Network. The special episode of "Oprah’s Next Chapter" will air Thursday, January 17 from 9-10:30 p.m. ET/PT (as previously announced) and Friday, January 18 at 9 p.m. ET/PT. The interview will be simultaneously streamed LIVE worldwide both nights on Oprah.com. (Photo by George Burns/Oprah Winfrey Network via Getty Images) (Handout/Getty Images)
Lance Armstrong through the years Cycling : Tour De France 2004 Podium, Armstrong Lance ( Usa ) Yellow Jersey Maillot Jaune Gele Trui, Kloden Andreas ( Ger )Stage Etape Rit 20 : Montereau - Paris-Champs-Elyseesronde Van Frankrijk (Photo by Tim De Waele/Getty Images) (Tim DE WAELE/Getty Images)
Lance Armstrong through the years 16-07-2004: Tour de France, stage 12 - Ivan Basso, Team CSC wins the stage in front of Lance Armstrong, US Postal. (Photo by Lars Ronbog/FrontzoneSport via Getty Images) (Lars Ronbog/FrontzoneSport via Getty Images)
Lance Armstrong through the years HOMESTEAD, FL - NOVEMBER 20: Jimmie Johnson, driver of the #48 Lowe's Chevrolet, poses in Victory Lane with his wife Chandra, daughters Genevieve Marie and Lydia Norriss, and former professional road racing cyclist Lance Armstrong after winning the NASCAR Sprint Cup Series Ford EcoBoost 400 and the 2016 NASCAR Sprint Cup Series Championship at Homestead-Miami Speedway on November 20, 2016 in Homestead, Florida. Johnson wins a record-tying 7th NASCAR title. (Photo by Sarah Crabill/Getty Images) (Sarah Crabill/Getty Images)