It was an exciting moment for the Duke and Duchess of Cambridge because it was their first official trip to the country.
It was also a continuation of British royals travelling to Ireland since the Queen's historic trip there in 2011. With the tour, Her Majesty became the first British royal to visit the Republic of Ireland in 100 years.
Since that moment, several royals have travelled the Emerald Isle, including the Sussexes and Prince Charles and Duchess Camilla. Prince Harry and Duchess Meghan went on a two-day tour of Ireland in July 2018, which was their first royal tour outside the United Kingdom as a married couple.
Charles and Camilla toured Ireland in June 2018 and on a whirlwind two-day tour in May 2019.
All of the tours have explored traditional Irish culture, included political engagements and helped strengthen the ties between the U.K. and Ireland.
Scroll through the gallery (or click through if you're on desktop) to see the best moments from royals' travels to Ireland throughout the years.
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Believed to have been created in the year 800 CE, it is an illuminated manuscript of the four Christian Gospels and New Testament. It contains content produced from the late 6th to early 9th centuries at monasteries in Ireland, Scotland and England by monks in the Columban tradition.
St. Columba is widely credited with spreading Christianity throughout Scotland and also founded many of the first monasteries in Ireland.
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Prince Harry and Meghan met with Taoiseach, or Prime Minister, Leo Varadkar during their tour of the Emerald Isle on July 10, 2018.
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After leaving the airport, the couple went straight to President Michael D. Higgins's residence at Áras an Uachtaráin in Dublin.
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Sporty Kate showed off her brilliant moves!
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