Meghan and Harry arrived at Westminster Abbey with pregnant Kate Middleton and Prince William for a church service celebrating Commonwealth Day.
Meghan's future father-in-law Prince Charles and his wife Camilla, Duchess of Cornwall were also in attendance.
For the occasion, the royal bride-to-be opted for a cream coat by Amanda Wakeley with a matching beret by Stephen Jones, while Kate Middleton wore a dark blue coat from Beulah London and matching Lock and Co hat.
The future sisters-in-law wore almost identical suede blue heels - Markle's by Manolo Blahnik and Middleton's by Rupert Sanderson.
After the service, the two couples met with school children before attending a reception.
Take a look at more photos below.