Prince Charles and his wife, Camilla, Duchess of Cornwall, are slated to spend the beginning of spring on a European tour, during which the royal couple will visit Romania, Italy and the Holy See, as well as Austria, Clarence House said in a statement Tuesday. The Prince of Wales’ upcoming tour will reportedly focus on strengthening the U.K. and its European partners’ efforts for social cohesion, military influence and their continued fight against human trafficking.

Charles and Camilla are expected to travel around Europe starting March 29, arriving first in Romania, where they will explore Bucharest and neighboring areas until March 31. Following Romania, the duo will head to Italy – a country Prince Charles has visited 19 times – where they will visit the Holy See until April 5, after which Prince Charles and Camilla will travel to Vienna and then head back to the U.K. on April 6.

Prince Charles’ trip came following a request from the Foreign and Commonwealth Office. Members of the British Government are reportedly hoping Prince Charles’ trip will help maintain the alliance with the European Union as the U.K. makes its Brexit transition.

The prince and his wife aren’t the only royal members who will be spending a portion of the year traveling. Prince Charles’ oldest son, Prince William will also spend some time abroad later in the year with his wife, Catherine, Duchess of Cambridge. The couple will reportedly travel to Germany and Poland sometime in July, which also came at the request of the Foreign and Commonwealth Office.

Prince Charles, Duke of Cambridge, visited Dusseldorf, Germany without his wife back in 2016 and advocated for the continued friendship between Britain and Germany despite the changes followed by Brexit.

The royal couple’s July trip to Poland will mark their first trip to Poland on behalf of the government.