Add Royal Family as an interest to stay up to date on the latest Royal Family news, video, and analysis from ABC News. This visit is at the request of Her Majesty's Government.
Markle's third outfit choice was the Emilia Wickstead dress which she wore with simple black heels to the garden party reception at the British Ambassador's residence in Dublin.
After arriving at Dublin City Airport, Harry and Meghan were due to meet with Irish Prime Minister Leo Varadkar.
They will also visit Trinity College, the Famine Memorial and the Irish Emigration Museum over the course of their stay.
Harry, the Duke of Sussex, also wore his No 1 RAF uniform, with RAF Regiment shoulder flashes, in recognition of Honington - the home of the RAF Regiment - and also for his role as Honorary Air Commandant of the base.More news: Cave rescue diver hails 'incredibly strong' boys
Even before leaving for Ireland, it has been a busy week for the newlyweds.
After first appearing at Westminster Abbey to celebrate 100 years of the Royal Air Force, the Duke and Duchess of Sussex hopped on a plane to Ireland for a two-day tour - their first overseas engagement as a married couple.
(Picture: Getty) Heir to the throne Prince Charles and his wife Camilla, his son Prince William and wife Kate, and Prince Harry and his wife Meghan, all joined the queen on the palace balcony for the display.
The Royals watched as Typhoons formed the shape of the number 100 in the sky, before the Red Arrows - the RAF's aerobatic team - concluded the show, vapour-trailing the red, white and blue of the Union Jack flag.
After dazzling in a handsome cream V-neck dress by Alexander McQueen yesterday at Prince Louis' christening , topped off with a stunning Jane Taylor headband, the Duchess of Cambridge donned yet another handsome look by the British label.