(“Ya’qūb ibn al-Layth al-Saffār” (يعقوب بن الليث الصفار), or Ya’qūb-i Layth-i Saffārī (یعقوب لیث صفاری), born Rādmān pūr-i Māhak (Persian: رادمان پور ماهک) (October 25, 840 – June 5, 879), a Persian coppersmith, was the founder of the ‘saffarid dynasty’ of Sistan, with its capital at Zaranj (a city now in south-western afghanistan))
(under his military leadership he conquered much of the eastern portions of the Greater Persia consisting of modern day Iran, Afghanistan, Turkmenistan, Uzbekistan, Tajikistan as well as portions of western Pakistan and a small part of ‘iraq’)
(he was succeeded by his brother, ‘Amr ibn al-Layth’)