Pope Francis arrives flanked by Queen Mathilde of Belgium and King Philippe of Belgium, at Melsbroek air base in Steenokkerzeel, near Brussels, on the first day of his four-day visit to Luxembourg and Belgium, Thursday, Sept. 26, 2024. (AP Photo/Geert Vanden Wijngaert)
Pope Francis arrives flanked by Queen Mathilde of Belgium and King Philippe of Belgium, at Melsbroek air base in Steenokkerzeel, near Brussels, on the first day of his four-day visit to Luxembourg and Belgium, Thursday, Sept. 26, 2024. (AP Photo/Geert Vanden Wijngaert)
Pope Francis arrives flanked by Queen Mathilde of Belgium and King Philippe of Belgium, at Melsbroek air base in Steenokkerzeel, near Brussels, on the first day of his four-day visit to Luxembourg and Belgium, Thursday, Sept. 26, 2024. (AP Photo/Geert Vanden Wijngaert)
Pope Francis talks to journalists on the flight back to Rome at the end of his four-day visit to Belgium and Luxembourg, Sunday, Sept. 29, 2024. (AP Photo/Andrew Medichini, Pool)
Pope Francis arrives at the Melsbroek air base in Steenokkerzeel, near Brussels, on the first day of his four-day visit to Luxembourg and Belgium, Thursday, Sept. 26, 2024. (AP Photo/Andrew Medichini)
Pope Francis arrives to lead the holy mass , at the King Baudouin stadium in Brussels, Belgium, Sunday, Sept. 29, 2024. (AP Photo/Omar Havana)
Pope Francis arrives for a meeting with bishops, deacons, and religious people in Koekelberg Basilica of the Sacred Heart, in Koekelberg, Belgium, Saturday Sept. 28, 2024. (AP Photo/Omar Havana)
Pope Francis is greeted by Archbishop Luc Terlinden during the farewell ceremony at Melsbroek Air Base at the end of a four-day visit to Belgium and Luxembourg, Sunday, Sept. 29, 2024. (AP Photo/Geert Vanden Wijngaert)
Pope Francis is cheered by faithful as he arrives to preside over the Sunday mass at King Baudouin Stadium, in Brussels Sunday, Sept. 29, 2024. (AP Photo/Andrew Medichini)
Pope Francis is cheered by faithful as he arrives to preside over the Sunday mass in King Baudouin Stadium, in Brussels Sunday, Sept. 29, 2024. (AP Photo/Andrew Medichini)
Pope Francis arrives flanked by Queen Mathilde of Belgium and King Philippe of Belgium at the Melsbroek air base in Steenokkerzeel, near Brussels, on the first day of his four-day visit to Luxembourg and Belgium, Thursday, Sept. 26, 2024. (AP Photo/Andrew Medichini)
Pope Francis cheers faithful at the end of his meeting with students of the Louvain Catholic University in Ottignies-Louvain-la-Neuve, Belgium, Saturday, Sept. 28, 2024. (AP Photo/Geert Vanden Wijngaert)
Cardinals wait for Pope Francis upon his arrival at Melsbroek air base in Steenokkerzeel, near Brussels, on the first day of his four-day visit to Luxembourg and Belgium, Thursday, Sept. 26, 2024. (AP Photo/Geert Vanden Wijngaert)
Pope Francis talks to Queen Mathilde of Belgium upon his arrival at the Melsbroek air base in Steenokkerzeel, near Brussels, on the first day of his four-day visit to Luxembourg and Belgium, Thursday, Sept. 26, 2024. (AP Photo/Geert Vanden Wijngaert)
Pope Francis wears a traditional hat at the end of his meeting with students of the Louvain Catholic University in Ottignies-Louvain-la-Neuve, Belgium, Saturday, Sept. 28, 2024. (AP Photo/Geert Vanden Wijngaert)
Pope Francis kisses a child during the Hope Happening youth festival at the Brussels Expo, Belgium, Saturday, Sept. 28, 2024, on the third day of his four-day visit to Luxembourg and Belgium. (AP Photo/Andrew Medichini)
Faithful listen as Pope Francis presides the holy mass , at the King Baudouin stadium in Brussels, Belgium, Sunday, Sept. 29, 2024. (AP Photo/Omar Havana)
Pope Francis visits the Home Saint-Joseph for elderly people in Brussels during his four-day trip to Luxembourg and Belgium, Friday, Sept. 27, 2024. (Ciro Fusco/pool photo via AP)
Pope Francis delivers his message as he meets with students of the Louvain Catholic University in Ottignies-Louvain-la-Neuve, Belgium, Saturday, Sept. 28, 2024. (AP Photo/Andrew Medichini)
Pope Francis waves to photographers during the farewell ceremony at Melsbroek Air Base at the end of a four-day visit to Belgium and Luxembourg, Sunday, Sept. 29, 2024. (AP Photo/Geert Vanden Wijngaert)
Pope Francis shakes hands with King Philippe during a meeting with the authorities and the civil society in the Grande Galerie of the Castle of Laeken, Brussels, Friday, Sept. 27, 2024. (AP Photo/Andrew Medichini)
Pope Francis, center, signs the book of honor during his visit to King Philippe of Belgium, right, and Queen Mathilde at the Castle of Laeken, Belgium, Friday, Sept. 26, 2024, on the second day of a four-day apostolic journey to Luxembourg and Belgium. (Alberto Pizzoli/pool photo via AP)
Pope Francis arrives at a meeting with bishops, deacons, and religious people in Koekelberg Basilica of the Sacred Heart, Belgium, Saturday, Sept. 28, 2024. (AP Photo/Andrew Medichini)
Pope Francis have a breakfast together with people who are experiencing homelessness and are assisted by the parish church of St. Gilles in Brussels, Saturday, Sept. 28, 2024. (AP Photo/Andrew Medichini)
A priest holds a rosary prior to the start of a mass presided by Pope Francis at King Baudouin Stadium, in Brussels Sunday, Sept. 29, 2024. (AP Photo/Andrew Medichini)
Faithful wait for the start of a mass presided by Pope Francis at King Baudouin Stadium, in Brussels Sunday, Sept. 29, 2024. (AP Photo/Andrew Medichini)
Pope Francis gestures during a tours in an open car among the faithful in the Groet Markt in Leuven, Belgium, on the second day of his four-day visit to Luxembourg and Belgium, Friday, Sept. 27, 2024. (AP Photo/Andrew Medichini)
Pope Francis visits the Home Saint-Joseph for elderly people in Brussels during his four-day trip to Luxembourg and Belgium, Friday, Sept. 27, 2024. (Ciro Fusco/pool photo via AP)
Pope Francis cheers faithful at the end of his meeting with students of the Louvain Catholic University in Ottignies-Louvain-la-Neuve, Belgium, Saturday, Sept. 28, 2024. (AP Photo/Geert Vanden Wijngaert)
Pope Francis waves during a tours in an open car among the faithful in the Groet Markt in Leuven, Belgium, on the second day of his four-day visit to Luxembourg and Belgium, Friday, Sept. 27, 2024. (AP Photo/Omar Havana)
Pope Francis have a breakfast together with people who are experiencing homelessness and are assisted by the parish church of St. Gilles in Brussels, Saturday, Sept. 28, 2024. (AP Photo/Andrew Medichini)
Pope Francis holds the pastoral staff as he presides over the Sunday mass at King Baudouin Stadium, in Brussels Sunday, Sept. 29, 2024. (AP Photo/Andrew Medichini)
A faithful reads a book as Pope Francis presides the holy mass, at the King Baudouin stadium in Brussels, Belgium, Sunday, Sept. 29, 2024. (AP Photo/Omar Havana)
Pope Francis covers his eyes from the sun as he leaves at the end of his meeting with students of the Louvain Catholic University in Ottignies-Louvain-la-Neuve, Belgium, Saturday, Sept. 28, 2024. (AP Photo/Geert Vanden Wijngaert)
Pope Francis leaves after his meeting with the professors at the Catholic University of Leuven, Belgium, Friday, Sept. 27, 2024. (AP Photo/Andrew Medichini)
Pope Francis cheers a nun during a meeting with bishops, deacons, and religious people in Koekelberg Basilica of the Sacred Heart, in Koekelberg, Belgium, Saturday Sept. 28, 2024. (AP Photo/Omar Havana)
Pope Francis attends a meeting with bishops, deacons, and religious people in Koekelberg Basilica of the Sacred Heart, in Koekelberg, Belgium, Saturday Sept. 28, 2024. (AP Photo/Omar Havana)
Pope Francis waves as he arrives to lead the holy mass , at the King Baudouin stadium in Brussels, Belgium, Sunday, Sept. 29, 2024. (AP Photo/Omar Havana)