The attempts to revive religious orthodoxy through revenue...

The attempts to revive religious orthodoxy through revenue reform gave momentum to the spread of Safavid Shi'a faith. Economic decline, which had resulted from fiscal reforms introduced by Yaqub, must have been another factor as well. Shaikh Jonayd's son, Shaikh Heydar (or Haider), led a movement that had begun as a Sufi order under his ancestor, Shaikh Safi ud-Din Ardabili (of Ardabil 1252-1334). This order may be considered to have originally…