Catholic sacraments in the context of "Seven Sacraments Altarpiece"

The Albigensian Crusade (French: Croisade des albigeois), also known as the Cathar Crusade (1209–1229), was a military and ideological campaign initiated by Pope Innocent III to eliminate Catharism in Languedoc, what is now southern France. The Crusade was prosecuted primarily by the French crown and promptly took on a political aspect. It resulted in the significant reduction of practicing Cathars and a realignment of the County of Toulouse with the French crown. The distinct regional culture of Languedoc was also diminished.

The Cathars originated from an anti-materialist reform movement within the Bogomil churches of the Balkans calling for what they saw as a return to the Christian message of perfection, poverty and preaching, combined with a rejection of the physical. The reforms were a reaction against the often perceived scandalous and dissolute lifestyles of the Catholic clergy. Their theology, Gnostic in many ways, was basically dualist. Several of their practices, especially their belief in the inherent evil of the physical world, conflicted with the doctrines of the Incarnation of Christ and Catholic sacraments. This led to accusations of Gnosticism and attracted the ire of the Catholic establishment. They became known as the Albigensians because many adherents were from the city of Albi and the surrounding area in the 12th and 13th centuries.

In persona Christi is a Latin phrase meaning "in the person of Christ", an important concept in Roman Catholicism and, similarly or in varying degrees, other Christian traditions, such as Lutheranism, Anglicanism, as well as Eastern Orthodoxy. In Catholic theology, a priest is In persona Christi because, in the sacraments he administers, it is God and Christ who acts through the instrumentality of the priest. An extended term, In persona Christi capitis, “in the person of Christ the head,” was expressed by the bishops of the Vatican Council II in the Decree on the Ministry and Live of Priests, Presbyterorum Ordinis, December 7, 1965.