Fratricide (from Latin: fratricidium, from the Latin words frater "brother" and the assimilated root of caedere "to kill, to cut down") is the act of killing one's brother.
It can either be done directly or via the use of either a hired or an indoctrinated intermediary (an assassin). The victim need not be the perpetrator's biological brother. In a military context, fratricide refers to a service member killing a comrade.
The Abrahamic religions recognize the biblical account of Cain and Abel as the first fratricidal murder to be committed. In the mythology of ancient Rome, the city is founded as the result of a fratricide, with the twins Romulus and Remus quarreling over who has the favour of the gods and over each other's plans to build Rome, with Romulus becoming Rome's first king and namesake after killing his brother.
In the Hindu epic Mah?bh?rata, Karna was killed by Arjuna who was unaware that Karna was his eldest brother. Though not exactly fratricide, the otherwise meticulously pious Arjuna's actions. However, the context of the crime becomes markedly different when seen from the following angle:
1. Arjuna was oath-bound to avenge the death of his only son and heir apparent Abhimanyu who had been mercilessly slaughtered by a group of bloodthirsty warriors which included Karna.
2. While Arjuna was unaware that Karna was his own biological brother, the latter was apprised of the same by their common mother Kunti. And hence, even though he was privy to the bond of brotherhood, Karna still wholeheartedly (due to his allegiance to prince Duryodana) and readily elected to indulge in fratricide.
The 13th century poet, Kavi Kabila, while commenting broadly on the Ramayana and on Rama's killing of Raavan with the active support of the latter's estranged younger brother Vibhisan - upon whom Raavan had vowed black vengeance and on the killing of Bali (again by Rama) with the ready contrivance of his younger, disgruntled and banished, sibling Sugreev, has succinctly expressed this in a couplet:
The only known fratricide in the Roman Empire is the fairly well-known murder of Geta on the orders of his brother Caracalla in 211. The brothers had a fraught relationship enduring many years; upon their father Septimius Severus's death in February 211, the brothers succeeded him as co-emperors. Their joint rule was embittered and unsuccessful, with each of them conspiring to have the other one murdered. In December of that year, Caracalla pretended to be holding a reconciliation in their mother Julia Domna's apartment, when Geta was lured to come unarmed and unguarded. Upon Geta's arrival, a group of Centurions loyal to Caracalla ambushed him, with Geta dying in his mother's arms. It is said that the fratricide would often come back to haunt Caracalla.
There are many recorded fratricides in Persia, the most famous of which involving Cyrus the Great's sons Cambyses II and Bardiya, the former killing the latter. There are also stories about the sons of Artaxerxes I, Xerxes II, Sogdianus, and Darius II, all of which concern competition for the throne. In addition, there were many fratricides recorded during the Parthian and Sassanid Empires.
Fratricide was not a legal practice in the foundation of the Ottoman Empire. The practice of fratricide was legalized by Mehmed II. His grandfather, Mehmed I, struggled over the throne with his brothers Süleyman, ?sa, and Musa during the Ottoman Interregnum. This civil war lasted eight years and weakened the empire due to the casualties it inflicted and the division it sowed in Ottoman society. As a result, Mehmed II formally legalized the practice of fratricide in order to preserve the state and not further place strain on the unity as previous civil wars did. Mehmed II stated, "Of any of my sons that ascends the throne, it is acceptable for him to kill his brothers for the common benefit of the people (nizam-i alem). The majority of the ulama (Muslim scholars) have approved this; let action be taken accordingly."
When Mehmed's son, Bayezid II died, his son Selim I immediately assumed the throne and proceeded to execute his two brothers Ahmed and Korkut. The largest practice of fratricide was committed by Mehmed III when he had 19 of his brothers and half-brothers murdered and buried alongside their father. His successor Ahmed I when faced with public disapproval for the practice of fratricide decided to outlaw the practice and replace it with seniority ascension system along with imprisonment of any prince who would be a possible threat to the throne in the Kafes.
In the Mughal Empire, fratricides often occurred as a result of wars of succession. Shah Jahan had his eldest brother Khusrau Mirza killed in 1622. Shah Jahan also had his brother Shahriyar killed in 1628. Shah Jahan's son, Dara Shikoh was assassinated by four of his brother Aurangzeb's henchmen in front of his terrified son on the night of 30 August 1659 (9 September Gregorian).
The events in the Greek tragedy Antigone unfold due to the previous war between the princely brothers, Eteocles and Polyneices, who killed each other in combat. Polyneices had challenged his brother's claim to the throne of the city Thebes, and attacked the city with an army from Argos. Eteocles fought for Thebes to defend the city against Polyneices and his army. The two killed each other by stabbing in the heart.
Ashoka, also known as Chand-Ashoka (Cruel Ashoka), killed his brothers as punishment for the king's (his father) death and quarrel for the kingdom (war of succession). Later on, Ashoka conquered Greater India entire, before he adopted Buddhism and forsook war.
Familial killing terms:
Non-familial killing terms from the same root: