This articleneeds additional citations forverification. Please helpimprove this article byadding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Sororicide" – news ·newspapers ·books ·scholar ·JSTOR(April 2017) (Learn how and when to remove this message)

Sororicide (from Latin sororicidium; from soror 'sister' and -cīdium 'killing') is the act of murdering one's ownsister.

There are a number of examples of sororicide andfratricide inadolescents, evenpre-adolescents, wheresibling rivalry and resulting physical aggression can get out of hand and lead to the death of one of them, particularly when a potent weapon is available or one is significantly older than the other and misjudges their own strength.

• Berenice IV ofEgypt is believed to have poisoned her sisterCleopatra VI Tryphaena in 57 BC. She was later beheaded on the orders of her father,Ptolemy XII.
• Cleopatra VII of Egypt requested the execution of her sister,Arsinoe IV, (who was guilty of treason) which was carried out under the orders of her husband, then lover,Mark Antony, in 41 BC.
• Roman emperorCaligula, according to historianSuetonius, killed his sisterDrusilla after learning that she was pregnant with his child in AD 38. Most historians now believe that she probably died of fever.^{[citation needed]}
• Roman emperorCommodus ordered his older sisterLucilla to be put to death in AD 182, after she was implicated in plots with members of theSenate to overthrow him.
• Italian poetIsabella di Morra was killed by her brothers around 1546 for a suspected affair with a married nobleman, whom they also murdered.^[1]
• Piedad Martínez del Águila killed four of her younger siblings, including two sisters, between 1965 and 1966.^[2]
• Ronald DeFeo Jr. shot his two sisters, Allison and Dawn, in 1974. Their murders became the inspiration forthe Amityville Horror books and films.
• David Brom murdered his sister with an ax, alongside his brother, mother, and father in 1988.
• Canadian serial killersKarla Homolka andPaul Bernardo raped, then killed Karla's sisterTammy Homolka in 1990; allegedly, the killing was accidental.
• Martin Peyerl killed his sister Daniela in theBad Reichenhall Shootings.^{[citation needed]}
• Hatun Sürücü was murdered by her brother in Germany in 2005.
• Yuki Muto murdered his sisterAzumi Muto on December 30, 2006 in Japan.
• Sadia Sheikh was murdered by her brother in 2007 in Belgium.
• Aqsa Parvez was murdered by her brother in 2007 in Canada.
• Ella Bennett, 4, was murdered by her thirteen-year-old brother, Paris Bennett inAbilene, Texas.
• Morsal Obeidi was murdered by her brother in 2008 in Germany.
• Saima Khan, a 34-year-old carer and mother of three, was killed by her 27-year-old sister, Sabah Khan, on 23 May 2016 in Luton, Bedfordshire.^[3]

• Infanticide, killing of an infant under the age of one year
• Filicide, the killing of a child by their parent
• Avunculicide, the killing of one's uncle
• Mariticide, the killing of one's spouse
• Nepoticide, the killing of one's nephew
• Parricide, the killing of one's parents or another close relative
  • Patricide andmatricide, the killing of a father or mother respectively by their child
• Prolicide, is the killing of one's offspring
• Uxoricide, the killing of one's wife
• Fratricide, the killing of one's brother

• Killings by type
• Sororicides
• Femicide
• Sibling rivalry

• CS1 Spanish-language sources (es)
• Articles with short description
• Short description is different from Wikidata
• Articles needing additional references from April 2017
• All articles needing additional references
• All articles with unsourced statements
• Articles with unsourced statements from January 2011
• Articles with unsourced statements from June 2023