Mirza Kamal al-Din Shah Hossein Isfahani ( Persian : میرزا کمال الدین شاه حسین اصفهانی ), better simply known as Mirza Shah Hossein (میرزا شاه حسین), was an Iranian nobleman, who served as the vakil ( vicegerent ) and vizier of the Safavid Empire . He also briefly held the post of commander of the empire's musketeer corps ( tofangchi-aghasi ).