Complex sentence: Pope Francis approved a miracle attributed to him on 21 January 2016 which allowed for him to be canonized; on 15 March 2016 a consistory of cardinals scheduled his canonization to take place on 5 June 2016 in which it was celebrated in Saint Peter's Square.
Split into simpler sentences: Pope Francis approved a miracle attributed to him on 21 January 2016 which allowed for him to be canonized. On 15 March 2016 a consistory of cardinals scheduled his canonization to take place on 5 June 2016, which was celebrated in Saint Peter's Square.