Kate Middleton and Prince William celebrated St. David's Day, a big deal in Wales.
They showed their appreciation for the Welsh Guards in Windsor, where the St. David's Day Parade was taking place.
Prince William got to visit the Welsh Guards for the first time since becoming ceremonial Colonel.
During the parade, the royal couple gave the regiment's commanders and guardsmen...leeks? Yes, leeks are a traditional Welsh symbol.
This event is similar to the one Kate usually does for St. Patrick's Day.
This was just one part of a Wales-themed week for the Duke and Duchess of Cambridge.
It makes sense that they have a special connection to Wales, as it's where they lived when they were newlyweds and new parents. How sweet!