“Father” is the informal friendly title for a priest in the Catholic tradition, which does not have a female priesthood. The formal title for a priest is “Reverend”, which is not gender specific. In the Roman Catholic Church, nothing. We don’t have female priests.
Who is the leader of the Protestant Church?
Martin Luther, often called the father of Protestantism, fundamentally changed the Christian world through his force of will and new ideas. He tried passionately to reform the Catholic Church.