Who was the most powerful Safavid ruler?

Answer 1

shiism in the 10th/16th and 11th/17th century

in this period,ismail who was of the household of shaykh safi al-Din Ardaili(d.735/1334)a Sufi master and also a siite,begn a revolt in Ardabil,with three hundred Sufis who were disciples of his forefathers,with the aim of establishing an independent and powerful Shiite country. in this way,he begn the conquest of the Persia and overcme the local feudal princess.after the series of the bloody wars with ocal rulers and also the Ottomans who held the title of the caliph,he succeeded in forming Persia piece by piece into a country nd in making the shism the official religion in his kingdom.after the death of the Shah Ismail ,other Safavid kings reigned in Persia until the 12th/18th century and each continued to recognize shism as the official religion of the country and further to strengthen its hold upon this land.at the height of their power,during the reign of Shah Abbas,the Safavids were able to increase the territorial expansion and the population of Persia to twice its present size.as for other muslim lands.the Shiites popultions continued the same as before and increased only throough the natural growth of population