Pope Francis (C) is flanked by the General Secretary of the Lutheran World Federation Rev. Martin Junge (R) and the President of the Lutheran World Federation Bishop Munib Younan, during an ecumenical prayer at Lund's Lutheran Cathedral, in Sweden, on October 31, 2016. Pope Francis arrived in Sweden Monday on a historic mission to promote reconciliation and unity between Catholics and Protestants, riven by Christianity's nearly 500-year-old schism. / AFP PHOTO / POOL / ANDREW MEDICHINI