Catherine, Duchess of Cambridge is set to make a solo visit to Luxembourg on May 11.
Duchess of Cambridge
The 35-year-old royal - who shares Prince George, three, and 22-month-old Princess Charlotte with her husband Prince William - is poised to attend the commemoration of the 1867 Treaty of London, which confirmed the European state's independence.
Kensington Palace has revealed the Duchess is undertaking the trip at the request of the Foreign and Commonwealth Office, with further details about her overseas trip due to be announced nearer the time of her departure.
Meanwhile, the British royal recently described motherhood as a "rewarding" yet "overwhelming" job.
The Duchess admitted it is a "wonderful experience" being a parent, but said it is also a "huge challenge" at times.
Speaking about motherhood at last week's launch of Heads Together charity partner Best Beginnings' 'Out of the Blue' film series - which helps to raise awareness about mental health among women and children - she said: "I would like to thank Best Beginnings for inviting me here, to introduce the 'Out of the Blue' series. This collection of films shows how important it is to be open about mental health especially in the early years of parenthood.
"Personally, becoming a mother has been such a rewarding and wonderful experience. However, at times, it's also been a huge challenge."
The Duchess said that despite being surrounded by a strong support network, she has occasionally found motherhood to be an overwhelming experience.
She shared: "Even for me, who has support at home that most mothers do not, nothing could really prepare you for the sheer overwhelming experience of what it means to become a mother."
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