Cardinal Christophe Louis Yves Georges Pierre, Apostolic Nuncio in the United States of America, was born on 30 January 1946 in Rennes, Ille et Vilaine, France.
On 12 July 1995, Pope John Paull II appointed him Apostolic Nuncio in Haiti, conferring to him the title of titular archbishop of Gunela. He was consecrated by Cardinal Secretary of State Angelo Sodano on 24 September in the Cathedral of Saint-Vincent de Saint-Malo.
In 1999 he was transferred to Kampala in Uganda.
In 2007 he was appointed Apostolic Nuncio in Mexico and on 12 April 2016 he was appointed Apostolic Nuncio in the United States of America.