Roman Catholic Church

The Roman Catholic Church is the largest current church within Christianity. Its Catholic social teaching has inspired the creation of Christian democracy. Unsurprisingly, Christian democrats often tend to be Catholics.

Relation to Christian democracy
While the Catholic Church has historically supported monarchy, the church has majorly changed its political positions in the last decade, and the church's recent doctrines, particularly the Catholic social teaching have served as the basis for Christian democracy. The current pope, Pope Francis, can easily be seen as a Christian democrat.