Despite the service he rendered to the Qajar government, Hasan Ali Shah was dismissed from the governorship of Kerman in 1837, less than two years after his arrival there, and was replaced by Firuz Mirza Nusrat al-Dawla, a younger brother of Muhammad Shah Qajar.

Hussein, Ali's younger son and brother to Hasan, initially resisted calls to lead the Muslims against Muawiyah and reclaim the caliphate.

Hussein ibn Ali ibn Abi Talib ( also spelled Hussayn ) ()‎ ( 8 January 626 CE – 10 October 680 CE ) ( 3rd Sha ' aban 4 AH – 10th Muharram 61 AH ) was the son of Ali ibn Abi Ṭalib ( final Rashidun Caliph and first Shia Imam ) and Fatimah Zahra ( daughter of the Islamic prophet Muhammad ) and the younger brother of Hasan ibn Ali.

The Shia view is that Ali ’ s right to the caliphate was usurped and his family abused by Abu Bakr but Ali, Hasan and his younger brother Husayn ibn Ali valued the Muslim community's stability above their own rights, even going to defend the third caliph Uthman before Ali himself received the caliphate.

According to Ali's appointment before his death the choice was restricted to Hasan and his younger brother Husayn.

According to Shia scholars Hasan stipulated that the caliphate should be returned to him if he was still alive after Muawiyah's death, otherwise it should be given to his younger brother.

İstanbul Kanatlarımın Altında ( Istanbul Under My Wings, 1996 ) is a film about the lives of Hezarfen Ahmet Çelebi, his brother Lagari Hasan Çelebi, and the Ottoman society in the early 17th century, during the reign of Murad IV, as witnessed and narrated by Evliya Çelebi.

* A feature length film, " Istanbul Beneath My Wings " ( İstanbul Kanatlarımın Altında, 1996 ) concerns the lives of Hezârfen Ahmed Çelebi, his brother Lagari Hasan Çelebi, and the Ottoman society in the early 17th century, as witnessed and narrated by Evliyâ Çelebi.

Istanbul Beneath My Wings is a film about the lives of Hezarfen Ahmet Çelebi, his brother Lagari Hasan Çelebi, and Ottoman society in the early 17th century as witnessed and narrated by Evliya Çelebi.

* Abdul Hasan Asaf-Khan of Persia (?- 1641 ), Grand Vizer of the Mughal Empire ( and brother of Nur Jahan ), in office c. 1611 – 1632

Genealogoical chart of the descent from the Prophet of the Idrisid dynasty, rulers of Fez and Morocco, Kings of Tunis, and the Senussi dynasty, founders and heads of the Libyan Senussi Order and Kings of Libya are also descended from the other brother Hasan ibn Ali through Al Hassan Addakhil:

According to Juwayni, he was stabbed in the Ismaili castle of Lamasar by his brother in law, Hasan Namwar.

Evliyâ Çelebi also tells of Hezarfen's brother, Lagari Hasan Çelebi, performing the first flight with a rocket in a conical cage filled with gunpowder in 1633.

Hussein and his brother Hasan were the last descendants of Muhammad living during his lifetime and remaining after his death.

When Hasan ibn Ali agreed to make a peace treaty with Muawiyah I, the first Umayyad caliph, he left Kufa and went to Medina with his brother Husayn.

Husayn ibn Ali and his brother Hasan ibn Ali were regarded by Prophet Muhammed as his own sons due to his love for them and as they were the sons of his daughter Fatima and he regarded her children and descendants as his own children and descendants, and he said " Every mothers children are associated with their father except for the children of Fatima for I am their father and lineage " Thus only the descendants of Fatima are the descendants and progeny of the Prophet and his Ahlul Bayt.

There are also hadiths that state that Hasan and Husayn are the Masters of the youth in paradise and that Hasan and his brother Hussein are imams " whether they sit or stand ".

" said Mamun, " Son of Musa, son of Jafar, son of Muhammad, son of Ali, son of Husayn, brother of Hasan, son of Ali the cousin and successor to Muhammad the Messenger of God "

Many felt that Hasan al-Askari became the eleventh Imam by default because his older brother had died and was considered the designated successor to his father during his lifetime.

* In Persia, Sardar-i-Bozorg was the title of both Hossein Khan Sardar and his brother Hasan Khan Qajar.

* The Sulaymanid dynasty of Yemen has origin in Hasan ibn Hasan, brother of Zayd ibn Hasan ( see Zaydid dynasty above ).

In particular, Shia Islamic plays revolved around the shaheed ( martyrdom ) of Ali's sons Hasan ibn Ali and Husayn ibn Ali.

Muhammad, to prove himself to them as a prophet, brought his daughter Fatimah, son-in-law Ali ibn Abi Talib and both of his grandsons, Hasan and Husayn and came back to the Christians and said to them " This is my family, the ( Ahl al-Bayt )" and covered himself and his family with a cloak.

During Ali's caliphate Hasan, Husayn, Muhammad ibn al-Hanafiyyah and Abdullah ibn Ja ' far appear as his closest assistants within his household.

Muawiyah I ordered for public curses of Ali and his major supporters including Hasan and Husayn.

Husayn left Medina with his sisters, daughters, sons, brothers, and the sons of Hasan.

Husayn ibn Ali was married to four women, Rubab bint Imra al-Qais with whom he fathered Ali al-Asghar ibn Husayn and Sukayna bint Husayn, Layla bint Abi Murrah al-Thaqafi mother of Ali al-Akbar ibn Husayn, Umm Ishaq bint Talhah, the widow of Hasan ibn Ali, mother of Fatimah bint Husayn.

* Hasan and Husayn are the masters of the youth of Paradise and Fatimah is the master of their women.

* Muhammad looked towards Ali, Fatimah, Hasan and Husayn and said, " I am at war with those who fight you and in peace with those who please you.

He had four children with Fatimah, Hasan ibn Ali, Husayn ibn Ali, Zaynab bint Ali and Umm Kulthum bint Ali.

Despite Ibn as-Sakkit's agreeance to the task, he actually ended up dying at the hands of al-Mutawakkil ; the caliph asked him " Are my sons more respectable than Hasan and Husayn?

Starting with Muhammad to Ali to the grandsons of Muhammad, Hasan ibn Ali and Husayn ibn Ali ( Muhammad had no surviving sons of his own ) and so on.

The revolt of Husayn ibn Ali ibn Hasan broke out when Husayn declared himself caliph in Medina.

In the year 1594 Jahangir's was dispatched by his father the Mughal Emperor Akbar, alongside Abdul Hasan Asaf Khan and Abu ' l-Fazl ibn Mubarak to defeat the renegade Vir Singh Deo of Bandela and capture the city of Orchha, which was considered the center of the revolt.

He is succeeded by Hasan ibn Ali but abdicated the Caliph to Muawiyah I.

* Hasan ibn Ali, grandson of Muhammad and Shī ‘ ah Imām

* Hasan ibn Ali, grandson of Muhammad and second Shia Imam

* The Zanj Empire is founded by Ali ibn Hasan, succeeding the Kilwa Empire.

; Named after Imam Hasan ibn Ali

Muhammad ibn Jarir al-Tabari dates this in 803 and lists various accounts for the cause: Yahya's entering the Caliph's presence without permission, Yahya's opposition to Muhammad ibn al Layth who later gained Harun's favour, Ja ' far release of Yahya ibn Abdallah ibn Hasan whom Harun had imprisoned, the ostentatious wealth of the Barmakids and the alleged romantic relationship between Yahya's son and Harun's sister Abbasa.

In 695, Hasan ibn al-Nu ' man captured Carthage and advanced into the Atlas Mountains.

A Byzantine fleet arrived, retook Carthage but in 698 Hasan ibn al-Nu ' man returned and defeated Tiberios III at the Battle of Carthage.

Around 705 Musa ibn Nusayr replaced Hasan.

Mu ' tazili theology originated in the 8th century in Basra ( Iraq ) when Wasil ibn Ata ( d. 131 AH / 748 AD ) left the teaching lessons of Hasan al-Basri after a theological dispute regarding the issue of Al-Manzilah bayna al-Manzilatayn ( described below ); thus he, and his followers, including Amr ibn Ubayd ( d. 144 AH / 761 AD ), were labelled Mu ' tazili.

The shrine contains the tomb of ‘ Abdul ‘ Adhīm ibn ‘ Abdillāh al-Hasanī, a fifth generation descendant of Hasan ibn ‘ Alī and a companion of Muhammad al-Taqī.

Ali's son Hasan ibn Ali signed a truce and retired to private life in Medina.

Firstly, because of his involvement in the Battle of Siffin against Ali, whom the Shia Muslims believe was Muhammad's true successor ( see Succession to Muhammad ); secondly, for the breaking of the treaty he made with Hasan ibn Ali, after the death of Hassan ibn Ali, one of broken terms being appointing his son Yazid as his successor ; thirdly, on account of his responsibility for the killing of Hasan ibn Ali by alluring his wife Ja ' dah binte Ash ' as to poison him ; and fourthly by distorting Islam to match his unislamic rule.