European Council President Donald Tusk, accompanied by Archbishop Georg Ganswein, arrives for a meeting with Pope Francis at the Vatican, October 5, 2019. ANSA/ETTORE FERRARI/Pool via REUTERS 

Russian President Vladimir Putin accompanied by Archbishop Georg Ganswein arrives for a meeting with Pope Francis at the Vatican July 4, 2019. Alessandro Di Meo/Pool via REUTERS 

Russian President Vladimir Putin is welcomed by Archbishop Georg Ganswein as he arrives ahead of a meeting with Pope Francis at the Vatican July 4, 2019. REUTERS/Yara Nardi TPX IMAGES OF THE DAY 

Russian President Vladimir Putin is welcomed by Archbishop Georg Ganswein as he arrives ahead of a meeting with Pope Francis at the Vatican July 4, 2019. REUTERS/Yara Nardi 

Russian President Vladimir Putin is welcomed by Archbishop Georg Ganswein as he arrives ahead of a meeting with Pope Francis at the Vatican July 4, 2019. REUTERS/Yara Nardi 

Russian President Vladimir Putin is welcomed by Archbishop Georg Ganswein as he arrives ahead of a meeting with Pope Francis at the Vatican July 4, 2019. REUTERS/Yara Nardi 

Pope Francis talks with Archbishop Georg Ganswein during the Wednesday general audience in Saint Peter's square at the Vatican, September 5, 2018. REUTERS/Max Rossi 

Pope Francis talks with Archbishop Georg Ganswein at the end of his Wednesday general audience in Saint Peter's square at the Vatican, May 2, 2018. REUTERS/Stefano Rellandini 

Pope Francis talks with Archbishop Georg Ganswein at the end of his Wednesday general audience in Saint Peter's square at the Vatican, May 2, 2018. REUTERS/Stefano Rellandini 

Pope Francis arrives to lead the Wednesday general audience flanked by Archbishop Georg Ganswein in Saint Peter's square at the Vatican, April 4, 2018. REUTERS/Remo Casilli 

Turkish President Tayyip Erdogan (R) arrives, accompanied by archbishop Georg Ganswein, to attend a private audience with Pope Francis at the Vatican February 5, 2018. REUTERS/Alessandro Di Meo/Pool 

Turkish President Tayyip Erdogan (R) arrives, accompanied by archbishop Georg Ganswein, to attend a private audience with Pope Francis at the Vatican February 5, 2018. REUTERS/Alessandro Di Meo/Pool 

Turkish President Tayyip Erdogan is welcomed by archbishop Georg Ganswein as he arrives to attend a private audience with Pope Francis at the Vatican February 5, 2018. REUTERS/Alessandro Bianchi TPX IMAGES OF THE DAY 

Turkish President Tayyip Erdogan is welcomed by archbishop Georg Ganswein as he arrives to attend a private audience with Pope Francis at the Vatican February 5, 2018. REUTERS/Alessandro Bianchi 

Turkish President Tayyip Erdogan (L) is welcomed by archbishop Georg Ganswein as he arrives to attend a private audience with Pope Francis at the Vatican February 5, 2018. REUTERS/Alessandro Bianchi 

Archbishop Georg Ganswein welcomes Turkish President Tayyip Erdogan (C) and his wife Emine Erdogan as they arrive to attend a private audience with Pope Francis at the Vatican February 5, 2018. REUTERS/Alessandro Bianchi 

Turkish President Tayyip Erdogan is welcomed by archbishop Georg Ganswein as he arrives to attend a private audience with Pope Francis at the Vatican February 5, 2018. REUTERS/Alessandro Bianchi 

Turkish President Tayyip Erdogan is welcomed by archbishop Georg Ganswein as he arrives to attend a private audience with Pope Francis at the Vatican February 5, 2018. REUTERS/Alessandro Bianchi 

Turkish President Tayyip Erdogan is welcomed by archbishop Georg Ganswein as he arrives to attend a private audience with Pope Francis at the Vatican February 5, 2018. REUTERS/Alessandro Bianchi 

German Chancellor Angela Merkel talks with archbishop Georg Ganswein as she arrives to meet Pope Francis at the Vatican June 17, 2017. REUTERS/Max Rossi 

German Chancellor Angela Merkel stands next to her husband Joachim Sauer as she talks with archbishop Georg Ganswein before meeting Pope Francis at the Vatican June 17, 2017. REUTERS/Max Rossi 

German Chancellor Angela Merkel greets archbishop Georg Ganswein as she arrives to meet Pope Francis at the Vatican June 17, 2017. REUTERS/Max Rossi 

Archbishop Georg Ganswein escorts Canada's Prime Minister Justin Trudeau as he arrives for a private audience with Pope Francis at the Vatican, May 29, 2017. REUTERS/Ettore Ferrari/pool 

Archibishop Georg Ganswein escorts U.S. President Donald Trump and first lady Melania Trump who arrive to meet Pope Francis at the Vatican, May 24, 2017. REUTERS/Alessandro Bianchi 

Archibishop Georg Ganswein escorts U.S. President Donald Trump and first lady Melania Trump who arrive to meet Pope Francis at the Vatican, May 24, 2017. REUTERS/Alessandro Bianchi 

Myanmar State Counsellor Aung San Suu Kyi walks with Archibishop Georg Ganswein as she arrives to attend a private audience with Pope Francis at the Vatican May 4, 2017. REUTERS/Tony Gentile 

Archbishop Georg Ganswein holds palm branches at the start of the Palm Sunday Mass led by Pope Francis at Saint Peter's Square at the Vatican April 9, 2017. REUTERS/Tony Gentile 

Archbishop Georg Ganswein greets Luxembourg Prime Minister Xavier Bettel (C) and his husband Gauthier Destenay as they arrive for a meeting with Pope Francis at the Vatican March 24, 2017. REUTERS/Alessandro Bianchi 

Archbishop Georg Ganswein greets Pope Francis as he arrives for a meeting with EU leaders at the Vatican March 24, 2017. REUTERS/Alessandro Bianchi 

Archbishop Georg Ganswein greets European Council President Donald Tusk and his wife Malgorzata Tusk, as they arrive for a meeting with Pope Francis at the Vatican March 24, 2017. REUTERS/Alessandro Bianchi 

Archbishop Georg Ganswein greets Irish Prime Minister Enda Kenny as he arrives for a meeting with Pope Francis at the Vatican March 24, 2017. REUTERS/Alessandro Bianchi 

Archbishop Georg Ganswein greets Pope Francis as he arrives for a meeting with EU leaders at the Vatican March 24, 2017. REUTERS/Alessandro Bianchi 

Archbishop Georg Ganswein greets Luxembourg's Prime Minister Xavier Bettel as he arrives for a meeting with Pope Francis at the Vatican March 24, 2017. REUTERS/Alessandro Bianchi 

Archbishop Georg Ganswein greets European Council President Donald Tusk as he arrives for a meeting with Pope Francis at the Vatican March 24, 2017. REUTERS/Alessandro Bianchi 

Archbishop Georg Ganswein greets President of Lithuania Dalia Grybauskaite as she arrives for a meeting with Pope Francis at the Vatican March 24, 2017. REUTERS/Alessandro Bianchi 

Archbishop Georg Ganswein greets Greece's Prime Minister Alexis Tsipras and his partner Betty Batziana as they arrives for a meeting with Pope Francis at the Vatican March 24, 2017. REUTERS/Alessandro Bianchi 

Pope Francis arrives flanked by Archbishop Georg Ganswein prior a meeting with EU leaders at the Vatican March 24, 2017. REUTERS/Alessandro Bianchi 

Pope Francis arrives flanked by Archbishop Georg Ganswein prior a meeting with EU leaders at the Vatican March 24, 2017. REUTERS/Alessandro Bianchi 

Archbishop Georg Ganswein greets Italian Prime Minister Paolo Gentiloni and his wife Emanuela Mauro as they arrive for a meeting with Pope Francis at the Vatican March 24, 2017. REUTERS/Alessandro Bianchi 

Archbishop Georg Ganswein greets German Chancellor Angela Merkel and her husband Joachim Sauer as they arrive for a meeting with Pope Francis at the Vatican March 24, 2017. REUTERS/Alessandro Bianchi 

Archbishop Georg Ganswein greets Spanish Prime Minister Mariano Rajoy as he arrives for a meeting with Pope Francis at the Vatican March 24, 2017. REUTERS/Alessandro Bianchi 

Archbishop Georg Ganswein greets Poland's Prime Minister Beata Szydlo as she arrives for a meeting with Pope Francis at the Vatican March 24, 2017. REUTERS/Alessandro Bianchi 

Archbishop Georg Ganswein greets French President Francois Hollande as he arrives for a meeting with Pope Francis at the Vatican March 24, 2017. REUTERS/Alessandro Bianchi 

Archbishop Georg Ganswein greets French President Francois Hollande as he arrives for a meeting with Pope Francis at the Vatican March 24, 2017. REUTERS/Alessandro Bianchi 

Archbishop Georg Ganswein greets German Chancellor Angela Merkel and her husband Joachim Sauer as they arrive for a meeting with Pope Francis at the Vatican March 24, 2017. REUTERS/Alessandro Bianchi 

Archbishop Georg Ganswein greets European Commission President Jean-Claude Juncker as he arrives for a meeting with Pope Francis at the Vatican, March 24, 2017. REUTERS/Alessandro Bianchi 

European Commission President Jean-Claude Juncker kisses Archbishop Georg Ganswein as he arrives for a meeting with Pope Francis at the Vatican, March 24, 2017. REUTERS/Alessandro Bianchi 

Archbishop Georg Ganswein greets European Commission President Jean-Claude Juncker as he arrives for a meeting with Pope Francis at the Vatican, March 24, 2017. REUTERS/Alessandro Bianchi 

Cameroon's President Paul Biya (R) is welcomed by Archbishop Georg Ganswein prior to a private audience with Pope Francis at the Vatican March 23, 2017. REUTERS/Vincenzo Pinto/pool 

Pope Francis looks as he is flanked by bishop Georg Ganswein (L) during an audience with the Community of Capodarco, a non-profit organisation that promotes the rights of socially marginalized people, in Paul VI hall at the Vatican February 25, 2017. REUTERS/Alessandro Bianchi 

Palestinian President Mahmoud Abbas shakes hands with archbishop Georg Ganswein as he arrives to meet Pope Francis at the Vatican, January 14, 2017. REUTERS/Max Rossi 

Palestinian President Mahmoud Abbas shakes hands with archbishop Georg Ganswein as he arrives to meet Pope Francis at the Vatican, January 14, 2017. REUTERS/Max Rossi 

Archbishop Georg Ganswein waves as he arrives at the Vatican December 16, 2016. REUTERS/Alessandro Bianchi 

Colombia's President Juan Manuel Santos (R) and his wife Maria Clemencia Rodriguez (L) are greeted by Archbishop Georg Ganswein (C) as they arrive to meet Pope Francis at the Vatican December 16, 2016. REUTERS/Alessandro Bianchi 

Archbishop Georg Ganswein arrives at the Vatican December 16, 2016. REUTERS/Alessandro Bianchi 

Colombia's President Juan Manuel Santos (C) and his wife Maria Clemencia Rodriguez (L) are greeted by Archbishop Georg Ganswein as they arrive to meet Pope Francis at the Vatican December 16, 2016. REUTERS/Alessandro Bianchi 

German Archbishop Georg Ganswein attends a consistory ceremony to install 17 new cardinals led by Pope Francis in Saint Peter's Basilica at the Vatican November 19, 2016. REUTERS/Stefano Rellandini 

Archbishop Georg Ganswein is seen as Pope Francis leads general audience in Saint Peter's Square at the Vatican, November 9, 2016. REUTERS/Stefano Rellandini 

Pope Francis talks with Archbishop Georg Ganswein during a special audience with members of an association of elderly workers in Paul VI hall at the Vatican October 15, 2016. REUTERS/Tony Gentile 

Pope Francis smiles as he talks with Archbishop Georg Ganswein at the end of his Wednesday general audience in Saint Peter's square at the Vatican June 15, 2016. REUTERS/Tony Gentile