On October 31, 2016, the 499th anniversary of Martin Luther’s famous “Ninety-five Theses,” the head of the Roman Catholic Church, Pope Francis I, traveled to Sweden to take part in the many events there commemorating the beginning of the 500th year of the Protestant Reformation. While there, he participated in a joint prayer service in a Lutheran cathedral in the city of Lund—a cathedral which had once been Catholic, but which was seized when Sweden officially rejected Catholicism as the state religion.
Full text at - https://www.tomorrowsworld.org/magazines/2017/march-april/the-plain-truth-about-the-protestant-reformation-part-1