As part of their two-day visit, the duke and duchess will visit Croke Park, Ireland's largest sporting arena and the country's main Gaelic football stadium, as well as the Irish Emigration Museum, Trinity College Dublin and a small start-up called DogPatch Labs.
Meghan looked sensational in a simple black dress with a matching fascinator as she clung to her husband's arm. They will attend a commemorative service, followed by a flypast including up to 100 aircraft.
Markle's appearance on the Palace balcony will be her second following her Buckingham debut at Trooping the Colour at the beginning of June.
Arsenal sign Uruguay World Cup star Torreira
Earlier on Tuesday, Arsenal formally announced the £26m signing of Uruguay World Cup star Torreira who joined from Sampdoria . The midfielder made a total of 74 appearances for the Serie A side, scoring four goals.
Kate Middleton donned the stunning Air Cadets Dacre broach, made of diamonds and rubies, on her chest for the Royal Air Force Centenary celebrations in London. It's also been the site of several royal weddings, including the marriage of Queen Victoria and Prince Albert in 1840, and the nuptials of King George V and Princess Mary of Teck in 1893.
Their visit to Dublin will include Croke Park, Trinity College, and the starvation memorial, Irish Mirror reports.
When you become a member of the Royal Family there are certain fashion guidelines one is expected to abide by.