The organization of the cavalry was based on a slightly different grouping. This grouping was known as a "rusthåll" (literally "arm household"), a bigger farm or estate (practically a peasant manor) that could support a horseman with his horse and equipment in exchange for tax exemption. The horseman who volunteered for service was often the estate master himself or a close relative. This option resembled the medieval origin of knighthood but no longer carried the Swedish noble status with it, as the cavalryman was not permanently stationed in war, but was allowed to remain home at peacetime. In particular cases, the estate owner received some taxes from neighbors to augment his own tax exemption: as the burden of a cavalryman with horse and equipment was deemed considerable, compensation needed to be commensurate.