Pope Francis joined members of the Italian lay Catholic group “Azione Cattolica Italiana” as they celebrated 150 years since their foundation during a special audierce in St. Peter's Square in Vatican City, Vatican on April 30, 2017.

Pope Francis joined members of the Italian lay Catholic group “Azione Cattolica Italiana” as they celebrated 150 years since their foundation during a special audierce in St. Peter's Square in Vatican City, Vatican on April 30, 2017.

Pope Francis joined members of the Italian lay Catholic group “Azione Cattolica Italiana” as they celebrated 150 years since their foundation during a special audierce in St. Peter's Square in Vatican City, Vatican on April 30, 2017.

Pope Francis joined members of the Italian lay Catholic group “Azione Cattolica Italiana” as they celebrated 150 years since their foundation during a special audierce in St. Peter's Square in Vatican City, Vatican on April 30, 2017.

Pope Francis joined members of the Italian lay Catholic group “Azione Cattolica Italiana” as they celebrated 150 years since their foundation during a special audierce in St. Peter's Square in Vatican City, Vatican on April 30, 2017.

Pope Francis joined members of the Italian lay Catholic group “Azione Cattolica Italiana” as they celebrated 150 years since their foundation during a special audierce in St. Peter's Square in Vatican City, Vatican on April 30, 2017.

Pope Francis joined members of the Italian lay Catholic group “Azione Cattolica Italiana” as they celebrated 150 years since their foundation during a special audierce in St. Peter's Square in Vatican City, Vatican on April 30, 2017.

Pope Francis joined members of the Italian lay Catholic group “Azione Cattolica Italiana” as they celebrated 150 years since their foundation during a special audierce in St. Peter's Square in Vatican City, Vatican on April 30, 2017.

Pope Francis joined members of the Italian lay Catholic group “Azione Cattolica Italiana” as they celebrated 150 years since their foundation during a special audierce in St. Peter's Square in Vatican City, Vatican on April 30, 2017.

Pope Francis joined members of the Italian lay Catholic group “Azione Cattolica Italiana” as they celebrated 150 years since their foundation during a special audierce in St. Peter's Square in Vatican City, Vatican on April 30, 2017.

Pope Francis joined members of the Italian lay Catholic group “Azione Cattolica Italiana” as they celebrated 150 years since their foundation during a special audierce in St. Peter's Square in Vatican City, Vatican on April 30, 2017.

Pope Francis joined members of the Italian lay Catholic group “Azione Cattolica Italiana” as they celebrated 150 years since their foundation during a special audierce in St. Peter's Square in Vatican City, Vatican on April 30, 2017.

Pope Francis joined members of the Italian lay Catholic group “Azione Cattolica Italiana” as they celebrated 150 years since their foundation during a special audierce in St. Peter's Square in Vatican City, Vatican on April 30, 2017.

Pope Francis joined members of the Italian lay Catholic group “Azione Cattolica Italiana” as they celebrated 150 years since their foundation during a special audierce in St. Peter's Square in Vatican City, Vatican on April 30, 2017.

Pope Francis joined members of the Italian lay Catholic group “Azione Cattolica Italiana” as they celebrated 150 years since their foundation during a special audierce in St. Peter's Square in Vatican City, Vatican on April 30, 2017.

Pope Francis joined members of the Italian lay Catholic group “Azione Cattolica Italiana” as they celebrated 150 years since their foundation during a special audierce in St. Peter's Square in Vatican City, Vatican on April 30, 2017.

Pope Francis joined members of the Italian lay Catholic group “Azione Cattolica Italiana” as they celebrated 150 years since their foundation during a special audierce in St. Peter's Square in Vatican City, Vatican on April 30, 2017.

Pope Francis joined members of the Italian lay Catholic group “Azione Cattolica Italiana” as they celebrated 150 years since their foundation during a special audierce in St. Peter's Square in Vatican City, Vatican on April 30, 2017.

Pope Francis joined members of the Italian lay Catholic group “Azione Cattolica Italiana” as they celebrated 150 years since their foundation during a special audierce in St. Peter's Square in Vatican City, Vatican on April 30, 2017.

Pope Francis joined members of the Italian lay Catholic group “Azione Cattolica Italiana” as they celebrated 150 years since their foundation during a special audierce in St. Peter's Square in Vatican City, Vatican on April 30, 2017.

Pope Francis joined members of the Italian lay Catholic group “Azione Cattolica Italiana” as they celebrated 150 years since their foundation during a special audierce in St. Peter's Square in Vatican City, Vatican on April 30, 2017.

Pope Francis joined members of the Italian lay Catholic group “Azione Cattolica Italiana” as they celebrated 150 years since their foundation during a special audierce in St. Peter's Square in Vatican City, Vatican on April 30, 2017.

Pope Francis joined members of the Italian lay Catholic group “Azione Cattolica Italiana” as they celebrated 150 years since their foundation during a special audierce in St. Peter's Square in Vatican City, Vatican on April 30, 2017.