Pope Francis on Sunday wrapped up a weekend trip to Belgium, where he faced some of the strongest criticism yet levied during one of his foreign trips. The 87-year-old pontiff was pressed by high-profile figures at three of the five major events on his three-day visit in unusual and sometimes fierce language for a papal trip.

In his homily during Mass Sept. 29 in Brussels, Pope Francis strayed from his prepared text to urge bishops to hide nothing, “condemn abuses” and assist perpetrators in getting help.

The pope also had a number of off-program appointments during the visit — he surprised elderly at a care home, crashed a Catholic youth encounter, and prayed in front of the tomb of Belgian King Baudouin, a Catholic who temporarily abdicated the throne rather than sign a law legalizing abortion in 1990.