Obama and Pope Francis met several times while he was president. Pope Francis, who has led the Catholic Church since 2013, died at the age of 88, the Vatican said on Monday. During his 12-year tenure, the pope frequently weighted in on political matters such as LGBTQ+ rights, climate change, abortion rights and immigration.

By the time Francis took over as leader of the Catholic Church in 2013, meetings between the president and the pontiff had become commonplace. During the dozen years that he served as the pontiff, Francis, who died April 21, met each of the three men who served as the U.S. president during his papacy.