Solus Christus

Solus Christus, one of the five solas propounded to summarise the Reformers' basic beliefs during the Protestant Reformation; it is a Latin term referring to Salvation through Christ alone.
The emphasis was in contradistinction to the teaching of the Roman Catholic Chruch of the day.

The Protestants characterize the dogma concerning the Pope as
Christ's representative head of the Church on earth, the concept of meritorious works, and the Catholic idea of a treasury of the merits of saints, as a denial that Christ is the only mediator between God and man.