Taoist belief centers on this many Immortals, and Buddhism uses this number of rules for Nuns and this number of core beliefs in their "noble path".
Linguistic evidence suggests that early Indo-Europeans traveled in warbands of this many people. Medieval Seoul had this many gates, six of which are still extant. One king of this regnal number won the battle of Las Navas de Tolosa, and another king of this regnal number was invited by his sister (*),  Isabella, to invade a nearby nation. This many people made up a group of Spanish modernist composers modeled on the Five and les Six, and this many "banners" were utilized in the Qing Army. Taoist belief centers on this many Immortals, and Buddhism uses this number of rules for Nuns and this number of core beliefs in their "noble path". For ten points, name this regnal number of a king who founded the Church of England and had six wives.
Linguistic evidence suggests that early Indo-Europeans traveled in warbands of this many people.
8