Mandatory Credit: Photo by Tim Rooke/REX/Shutterstock (8965093bs) Prince William, Catherine Duchess of Cambridge visit the European Solidarity Centre in Gdansk?s shipyards Prince William and Catherine Duchess of Cambridge visit to Poland - 18 Jul 2017 European Solidarity Centre, in Gdansk?s shipyards - the birthplace of the Solidarity Movement in Poland. The Duke and Duchess will tour the museum, and meet with founding members of Solidarity, including the Former President Lech Walesa. On departure Their Royal Highnesses will walk through the iconic shipyard gates, which remain as a symbol of the protests during the 1980s, before leaving a wreath at the foot of the Solidarity Monument.