More than a year after splitting from her husband following his affair with her best friend, Shania Twain took to her official site to tell fans she`s doing great and to announce her new relationship. Marie Anne Thiebaud - Biography. Frederic has been married two times – his first wife was Marie-Anne Thiebaud who worked as a secretary to Shania Twain, and was also her best friend while Shania was at the time married to Robert Lange, her record producer. She reportedly had an affair with Twain's husband. Marie Anne Thiebaud – Facts, Bio, Family, Life, Updates 2020 Find more Marie-Anne Thiebaud news here. But between 2008 and June 2010, Shania and Frederic Thiebaud, Marie-Anne Thiebaud’s husband, would grow close, confirming their relationship in 2009, announcing their engagement on December 20, and marrying on January 1, 2011. … Robert John "Mutt" Lange (born 11 November 1948) is a Zambian-born South African record producer and songwriter. News via phone about her reported role in the split. But she told the Daily Mail that she received confirmation from Marie-Anne's husband, Frédéric Thiebaud, who revealed he found phone bills, hotel information, and receipts that pointed to an affair, not to mention lingerie in … Marie-Anne Thiebaud, 37, a longtime secretary and manager of the couple’s chateau in Switzerland, spoke to E! Contribute. Currently, he is married to Shania Twain, the Canadian singer. Login to add information, pictures and relationships, join in discussions and get credit for your contributions. But Marie-Anne's husband Frederic Thiebaud, 40, was the one to finally tell Shania the truth. He is known for his work in the studio and innovations in multitrack recording and producing many of rock's most famous albums. And those reasons should be kept private,” Thiebaud said. Aug 2, 2017 Getty Images. After knowing each other for years as friends, they discovered that her husband, Mutt Lange, and his wife and her best friend, Marie-Anne Thiébaud, were allegedly having an affair. Marie-Anne Thiebaud is a Swiss Manager. Subscribe […] As fans may recall, Shania and Frederic, who announced their engagement on Dec. 20, 2010, connected with each other through mutual heartbreak. She’s my past,” Twain shared with the outlet. Help us build our profile of Marie-Anne Thiebaud! Marie Anne Thiebaud claim to fame: Shania Twain`s ex best friend. “When marriages break up, they break up for all sorts of complicated reasons – it’s never just one reason. Short Biography. Marie-Anne Thiebaud was previously married to Frederic Thiébaud (2001 - 2008). Their marriage broke after she cheated on her husband with … As for Mutt, he ended up marrying Marie-Anne. Find more Marie-Anne Thiebaud news here. Marie Anne Thiébaud has slammed reports she broke up Shania Twain and Robert ‘Mutt’ Lange‘s 14-year marriage.