The Synod of Bishops on young people opens on Wednesday, and for the first time in history, two bishops from mainland China will be in attendance.

The agreement is a step toward addressing the long-cherished hope of bringing together China's 12 million Catholics who are divided between those worshipping in state-sanctioned churches and the underground priests and parishioners loyal to the pope.

Pope Francis urged Chinese Catholics on Wednesday to trust God and make concrete gestures of reconciliation following the landmark deal over bishop appointments.

"Rome nominates, the pope nominates. That is clear!”

Napoleon’s consolidation of power in France in 1801 involved the recognition of the pope as the “ordinary and immediate pastor” of the universal church—a key component in the impending agreement between the Vatican and China.