Owens, 42, is the son of Biden’s younger sister and political adviser, Valerie Biden Owens. The ceremony took place in Pennsylvania on Monday.
The White House described the event as a “small, family wedding at the home of Valerie and Jack Owens.” It was reportedly not on the president’s public schedule and no other details were provided.
King, 37, is best known for being a cast member on “The Real Housewives of Orange County” from 2015 to 2018.
The TV personality went public with her relationship with Owens, a Los Angeles-based lawyer, in a post on social media on Sept. 25.
“Trying my best to avoid any cheesy introductions like ‘my main squeeze’… so just meet my man,” she captioned a photo of them embracing.
Reality TV star Meghan O’Toole King is now married to Joe Biden’s nephew, Cuffe Owens. (Jamie McCarthy/Getty Images for EJAF)
It’s not clear when Owens and King started dating, as earlier this year King revealed she was dating Will Roos, a real estate investor.
She was previously married to former Major League Baseball player Jim Edmonds and they share three kids together: daughter Aspen, 4½, and twin sons Hart and Hayes, 3. Their tumultuous divorce was finalized in 2019.
The president and first lady are also prepping for another upcoming wedding. Their eldest granddaughter, Naomi Biden, is engaged to her longtime boyfriend Peter Neal.
The couple announced the news over Labor Day weekend on Instagram. “Forever,” Naomi captioned the photo.