Pars (Sasanian province) in the context of "Istakhr"

Artabanus IV, also known as Ardavan IV (Parthian: 𐭓𐭕𐭐𐭍), incorrectly known in older scholarship as Artabanus V, was the last ruler of the Parthian Empire from c. 213 to 224. He was the younger son of Vologases V, who died in 208.

Artabanus IV rebelled against his brother, Vologases VI, a few years after the latter succeeded their father as king. He was able to take control of most of the Parthian territories, although his brother continued to rule over a reduced principality. He fought off an invasion by the Roman emperor Caracalla in 217, preserving Parthian control over most of Mesopotamia. He then faced a rebellion in Pars by Ardashir, a local dynast. Artabanus's and Ardashir's armies met in April 224 at the Battle of Hormozdgan, where Artabanus was killed and his army was defeated. Ardashir then went on to conquer the rest of the Parthian Empire, inaugurating the rule of the Sasanian dynasty over Iran.

The Sasanian civil war of 628–632, also known as the Sasanian Interregnum was a conflict that broke out after the execution of the Sasanian king Khosrow II between the nobles of different factions, notably the Parthian (Pahlav) faction, the Persian (Parsig) faction, the Nimruzi faction, and the faction of general Shahrbaraz. Rapid turnover of rulers and increasing provincial landholder power further diminished the empire. Over a period of four years and fourteen successive kings, the Sasanian Empire weakened considerably, and the power of the central authority passed into the hands of its generals, contributing to its fall.

Kartir (also spelled Karder, Karter and Kerdir; Middle Persian: 𐭪𐭫𐭲𐭩𐭫 Kardīr) was a powerful and influential Zoroastrian priest during the reigns of four Sasanian kings in the 3rd century. His name is cited in the inscriptions of Shapur I (as well as in the Res Gestae Divi Saporis) and the Paikuli inscription of Narseh. Kartir also had inscriptions of his own made in the present-day Fars province (then known as Pars). His inscriptions narrates his rise to power throughout the reigns of Shapur I (r. 240–270), Hormizd I (r. 270–271), Bahram I (r. 271–274), and Bahram II (r. 274–293). During the brief reign of Bahram II's son and successor Bahram III, Kartir was amongst the nobles who supported the rebellion of Narseh, who overthrew Bahram III and ascended the throne. During Narseh's reign, Kartir faded into obscurity.

Abu al-Mughira Ziyad ibn Abihi (Arabic: أبو المغيرة زياد بن أبيه, romanized: Abū al-Mughīra Ziyād ibn Abīhi; c. 622–673), also known as Ziyad ibn Abi Sufyan (Arabic: زياد بن أبي سفيان, romanized: Ziyād ibn Abī Sufyān), was an administrator and statesman of the successive Rashidun and Umayyad caliphates in the mid-7th century. He served as the governor of Basra in 665–670 and ultimately the first governor of Iraq and practical viceroy of the eastern Caliphate between 670 and his death.

Ziyad's parentage is obscure, but he was raised among the Banu Thaqif in Ta'if, near Mecca. He arrived with his adoptive tribesmen in Basra upon its foundation in 636 as the Muslim Arabs' springboard for the conquest of the Sasanian Empire. He was initially employed by the city's first governor, Utba ibn Ghazwan al-Mazini, and was kept on as a scribe or secretary by his successors. Caliph Ali (r. 656–661) appointed Ziyad governor of Fars to suppress a local rebellion and he maintained his loyalty to Ali's caliphate after the latter's assassination in 661 and the subsequent rule of Ali's opponent, Mu'awiya I (r. 661–680). The latter overcame Ziyad's opposition, formally recognized him as his own paternal half-brother and appointed him governor of Basra. Ziyad's inaugural speech, in which he announced his carrot-and-stick approach to governing the city's turbulent population, is celebrated in Arab history for its eloquence.