Fath-Ali Shah Qajar in the context of "Agha Mohammad Khan Qajar"

Agha Mohammad Khan Qajar (Persian: آقامحمدخان قاجار, romanized: Âqâ Mohammad Xân-e Qâjâr; 14 March 1742 – 17 June 1797), also known by his regnal name of Agha Mohammad Shah (آقامحمد شاه), was the founder of the Qajar dynasty of Iran, ruling as Shah from 1789 to 1797. Originally a chieftain of the Quwanlu branch of the Qajar tribe, Agha Mohammad Khan was enthroned as the king of Iran in 1789 and crowned shāhanshāh (“King of Kings”) in 1796, after leading the Unification of Iran (1779–1796). Agha Mohammad Khan is often renowned as a "shrewd and relentless" leader whose "iron will" and military campaigns were pivotal in the establishment of present-day Iran.

Agha Mohammad Khan Qajar was castrated as a toddler upon his capture by Adel Shah Afshar and hence was childless. He was assassinated on 17 June 1797, and was succeeded by his nephew, Fath-Ali Shah Qajar.

Qizilbash or Kizilbash were a diverse array of mainly Turkoman Shia militant groups that flourished in Azerbaijan, Anatolia, Kurdistan, the Armenian highlands, and the Caucasus from the late 15th century onwards, and contributed to the foundation of the Safavid dynasty in early modern Iran.

By the 18th-century, anyone involved with the Safavid state—militarily, diplomatically, or administratively—came to be broadly referred to as "Qizilbash". It was eventually applied to some inhabitants of Iran. In the early 19th-century, Shia Muslims from Iran could be referred as "Qizilbash", thus highlighting the influence of the distinctive traits of the Safavids, despite the Iranian shah (king) Fath-Ali Shah Qajar (r. 1797–1834) simultaneously creating a Qajar dynastic identity grounded in the pre-Islamic past.

Abbas Mirza (Persian: عباس میرزا; 26 August 1789 – 25 October 1833) was the Qajar crown prince of Iran during the reign of his father Fath-Ali Shah Qajar (r. 1797–1834). As governor of the vulnerable Azerbaijan province, he played a crucial part in the two wars against the Russian Empire (1804–1813 and 1826–1828), as well as the war of 1821–1823 against the Ottoman Empire. He is also recognized for leading Iran's first reform and modernization attempts with the help of his ministers Mirza Bozorg Qa'em-Maqam and Abol-Qasem Qa'em-Maqam.

The conflict in the Azerbaijan and Caucasus regions between Iran and the Russian Empire was prevalent throughout the time that Abbas Mirza was growing up. On March 20, 1799, he was made the crown prince and given the title of Nayeb-al-saltana (viceregent). Around the same time, he was appointed the governor of Azerbaijan, with Soleyman Khan Qajar and Mirza Bozorg Qa'em-Maqam as his adjutants. Following Russia's takeover of Ganja in 1804, Abbas Mirza was in command of the Iranian military counterattack during the first and second Russo-Iranian wars. Throughout the two wars, he fought against numerous Russian commanders in various engagements, victorious and unsuccessful alike. The Iranians ultimately lost both wars, agreeing to sign the treaties of Gulistan and Turkmenchay, in which they ceded all of their holdings in the Caucasus, corresponding to present-day Armenia, Republic of Azerbaijan, and Dagestan.

Abdol Majid Mirza Eyn-ed-Dowleh (Persian: عبدالمجیدمیرزا عین‌الدوله; 1845 – 2 November 1927) was a Qajar prince and twice Prime Minister of Iran. He was the eldest son of Prince Soltan-Ahmad Mirza Azod od-Dowleh and a grandson of Fat'h-Ali Shah Qajar.

Ein ad-Dowleh Mansion in Tehran belonged to him.

Mohammad Shah Qajar (Persian: محمدشاه قاجار; born Mohammad Mirza; 5 January 1808 – 5 September 1848) was the third Qajar shah of Iran from 1834 to 1848, inheriting the throne from his grandfather, Fath-Ali Shah. From a young age, Mohammad Mirza was under the tutelage of Haji Mirza Aqasi, a local dervish from Tabriz whose teachings influenced the young prince to become a Sufi-king later in his life. After his father Abbas Mirza died in 1833, Mohammad Mirza became the crown prince of Iran and was assigned with the governorship of Azarbaijan. After the death of Fath-Ali Shah in 1834, some of his sons including Hossein Ali Mirza and Ali Mirza Zel as-Soltan rose up as claimants to the throne. Mohammad Shah soon suppressed the rebellious princes and asserted his authority.

Mohammad Shah dismissed and executed his tactful premier, Abol-Qasem Qa'em-Maqam, and appointed his favourite, Haji Mirza Aqasi, as the grand vizier. The new shah's main goal was to reestablish the rule of the Iranian government in the rebellious city of Herat. In 1837 he marched to Herat and laid a futile siege on the city, which was eventually withdrawn when the British government threatened to invade Iran. On his return, Mohammad suppressed a revolt in Isfahan led by the major clergy figure Mohammad Bagher Shafti. Through British-Russian mediation, he concluded the Second Treaty of Erzurum with the Ottoman Empire, after initially wanting retaliation for the sack of Khorramshahr by the Ottoman governor of Baghdad.