[Shah ʿAbbas I] had been early compelled to repress the ambition of the principal chiefs of the Kûzel-bash tribes, and had put several of them to death. He sought another defence against the effects of their turbulence, by forming a tribe of his own, which he styled Shah Sevund, or ‘the king's friends’; and he invited men of all tribes to enrol themselves in a clan, which he considered as devoted to his family, and therefore distinguished by his peculiar favour and protection. Volunteers could not be wanting at such a call: and we have one instance often thousand men being registered by the name of Shah-Sevund in one day. This tribe, which became remarkable for its attachment to the Suffavean dynasty, still exists in Persia, though with diminished numbers. It could once boast of more than a hundred thousand families.