Lance Armstrong marries longtime fiancée Anna Hansen in France

Lance Armstrong is married.

The former professional cyclist announced on Instagram Tuesday that he tied the knot with his longtime fiancée Anna Hansen.

"Best. Day. Ever. Married the love of my life @annahansenarmstrong," Armstrong, 50, wrote. "So special having our kids there, as well. It was an evening full of laughter and plenty of joyful tears."

"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 continued. "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."

He then thanked the officiant and photographer -- who both appear to be friends of the couple -- tagging them in the caption. "Hope you are all having an excellent summer -- I sure as hell am," he added.

Armstrong shared a carousel of photos of the big celebration, which took place in France at Château La Coste, a vineyard in Le Puy-Sainte-Réparade, in Provence. The photos included a snap of Armstrong and his bride, their kids, their "first look" moment and photos of their first dance and kiss.

The couple has been together since 2008 and shares two children, Olivia Marie Armstrong and Max Armstrong. Lance Armstrong also has three children from his first marriage to Kristin Richard: Luke Armstrong, Isabelle Armstrong and Grace Armstrong.

Armstrong proposed to Hansen in May 2017, sharing a photo of the two of them on Instagram in Lake Austin, Texas, along with the caption, "She said... YES!!!!"

Armstrong was regarded as one of America's greatest athletes and cycling's most decorated champion until an investigation by the United States Anti-Doping Agency in 2012 concluded that he had used performance-enhancing drugs. In 2013, Armstrong confessed to Oprah Winfrey in an interview to using banned substances for years. Armstrong was later stripped of all his titles.