

However, this right was taken away from it by the Targaryen kings and, whilst the Faith remained an important part of Westerosi customs, they grew corrupt and their practices became little more than a façade. This justice was enforced by the Faith Militant. Prior to the rule of House Targaryen, the Faith had the right to dispense justice, conduct inquests and trials and pass judgement over all echelons of society, including kings. Thus the Andals' Faith of the Seven became the dominant religion on the entire continent, except for in the North and the Iron Islands. As the Andals asserted their dominance over all regions south of the Neck, they asserted their religion over the First Men they conquered, replacing the worship of the Old Gods almost entirely throughout the southern kingdoms of Westeros. Soon all the kingdoms of the First Men, with the exception of the Kingdom of the North, fell to the invaders, who intermingled with some of the local dynasties, such as House Gardener, or replaced them altogether, as was the case of Mountain Kings of the Vale. The Andals burned down most of the weirwood trees in the south, which are considered sacred in the worship of the Old Gods of the Forest.

Bearing weapons made of steel, the Andals conquered the First Men and slaughtered the Children of the Forest, viewing their magic as an abomination before the Seven.

Some of the Andal warriors carved the seven-pointed star, the symbol of their religion, into their flesh to demonstrate their devotion.

Afterward the Andals sailed west and their invasion of Westeros began. The Faith originated six thousand years before the War of the Five Kings in the continent of Essos, specifically in Andalos where, according to legend, the " God of Seven" manifested before the Andal people. The Andals crossed the Narrow Sea to Westeros.
