News Meghan Markle Joined Queen Elizabeth and Kate Middleton for Her Biggest Royal Event Yet By Alexandra Whittaker and Olivia Bahou Olivia Bahou Facebook Olivia Solomon is a New York-based writer and editor who covers all things fashion, lifestyle, celebrity, and pop culture. She was previously the Assistant Digital Editor for InStyle, and her work has appeared in many national publications. InStyle's editorial guidelines Updated on March 12, 2018 @ 11:45AM Pin Share Tweet Email We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation. Learn more. If anyone has doubts about how well Meghan Markle fits into the royal family, they need only to look at family photos from Monday morning. Markle joined her fiancé Prince Harry, her future in-laws Kate Middleton and Prince William, her future father-in-law Prince Charles, and her future grandmother-in-law Queen Elizabeth for her biggest royal event yet, and it went off without a hitch. DANIEL LEAL-OLIVAS/AFP/Getty Images Markle was pictured arriving at Westminster Abbey with her fiancé and future in-laws, looking elegant in a cream-colored Amanda Wakeley coat ($1,199; orchardmile.com) and matching hat. She wore the ensemble with a navy Amanda Wakeley sheath dress ($267; orchardmile.com) and matching Mulberry bag and Manolo Blahnik stilettos ($625; barneys.com). Chris Jackson/Chris Jackson/Getty Images Her soon-to-be sister-in-law, the Duchess of Cambridge, must have gotten the style memo, as she also wore blue: The expectant mother paired a navy wrap dress and wide-brim hat with stilettos that were nearly identical to the pair Markle wore. DANIEL LEAL-OLIVAS/AFP/Getty Images PAUL GROVER/AFP/Getty Images They all gathered for a public event for the first time in 2018, a church service celebrating Commonwealth Day, and it's a big deal that Markle formally attended alongside the royal family. Queen Elizabeth serves as the head of the Commonwealth—53 nations in Europe, Africa, Asia, and the Americas—and Commonwealth Day celebrates this. While we haven't seen her in a photo with Markle yet, the queen arrived at Westminster Abbey looking regal in ruby. Joe Giddens/PA Images via Getty Images This occasion marks the first official event involving both Markle and Queen Elizabeth. Interestingly, Markle was not the only Hollywood face in attendance. Meghan Markle Just Announced Her Biggest Royal Date Yet As Kensington Palace previously reported, this year's Commonwealth Service will feature a musical performance by former One Direction band member and new solo artist Liam Payne.