Avunculate marriage

An avunculate marriage is a marriage with a parent’s sibling or with one’s sibling’s child — i.e., between an uncle or aunt and their niece or nephew. Such a marriage may occur between biological (consanguine) relatives or between persons related by marriage (affinity). In some countries, avunculate marriages are prohibited by law, while in others marriages between such biological relatives are both legal and common, though now far less common.

If the partners in an avunculate marriage are biologically related, they normally have the same genetic relationship as half-siblings, or a grandparent and grandchild – that is they share approximately 25% of their genetic material. (They are therefore more closely related than partners in a marriage between first cousins, in which on average the members share 12.5% of inherited genetic material, but less than that of a marriage between, for instance, cousin-siblings, in which the partners share 37.5% of their inherited genetic material.)

Avunculate marriage is permitted in Norway, Argentina, Australia,[1] Canada, Finland,[2] Malaysia,[3] The Netherlands,[4] Russia,[5] and in some states within the United States including New York and Rhode Island.[6] It is not permitted in New Zealand,[7] EnglandEngland and Wales.

History

Avunculate marriage was the preferred type of union in some pre-modern societies. Marriages between such close relatives were frequent in Ancient Egypt, at least among members of ruling dynasties.

In societies adhering to Jewish or Christian faiths, such marriages were sometimes allowed. The Talmud and Maimonides encourage marriages between uncles and nieces, though some early Jewish religious communities, such as the Sadducees, believed that such unions were prohibited by the Torah.[8] Among medieval and especially early-modern Christians, a marriage between a woman and the sibling of a parent was not always interpreted as violating Leviticus 18; this was especially so among the royal houses of Europe, and in Catholic countries a papal dispensation could be obtained to allow such a marriage.

Such marriages have traditionally been illegal in Islamic societies and are regarded as prohibited by Islam.

Avunculate marriages were prominent in the House of Habsburg. For example, Charles II of Spain was the son of an uncle and niece, Philip IV and Mariana of Austria; in turn, both of Philip's parents (and therefore both of Mariana's maternal grandparents) were the children of uncle-niece marriages, one of which also produced Mariana's paternal grandfather. As a result, instead of Charles' parents, grandparents, great-grandparents, and great-great-grandparents adding up to 30 different individuals, they numbered only 23.

Marriages between half-relatives are legal in the state of New York.[9][10]

List of historical or mythical avunculate marriages
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See also

References
  1. "Marriage Act 1961, s 23B".
  2. Pikkanen, Antti (24 July 2014). "Lapsena alttarille – Jenna Karjalainen meni naimisiin alaikäisenä". Nyt.fi. Helsingin Sanomat. Retrieved 26 July 2015. [Oikeusm]inisteriö käsittelee myös muita avioliittoon liittyviä poikkeuslupia. Lupaa voi anoa, jos esimerkiksi haluaa mennä naimisiin sisarensa lapsen kanssa. Mutta sellaisia hakemuksia tulee hyvin harvoin, 2000-luvulla pari kolme.
  3. Law Reform (Marriage and Divorce) Act 1976 Archived March 7, 2012, at the Wayback Machine (for Hindus only)
  5. The Family Code of the Russian Federation, Article 14 (in Russian)
  6. "NY State blesses 'incest' marriage between uncle, niece". NYpost.com. New York Post. 29 October 2014. Retrieved 16 August 2020.
  7. "Schedule 2: Forbidden marriages -- Marriage Act 1955 (as of 25 February 2012) -- New Zealand Legislation". Parliamentary Counsel Office. 25 February 2012. Retrieved 28 October 2012. A man/woman may not marry his/her–... (4) father's sister/brother; (5) mother's sister/brother; ... (19) brother's daughter/son; (20) sister's daughter/son
  8. Avunculate Marriage in the Bible
  9. Half-uncle/half-niece marriages are valid under N.Y. law - The Washington Post Eugene Volokh, 2014-10-30
  10. Rosa Prince (29 October 2014). "Marriage between uncle and niece is ruled legal by New York Court". www.telegraph.co.uk. Retrieved 22 March 2020.
  11. Sparta Revisited - Spartan Leodnidas I and Gorgo
  12. Durant, Will; Ariel Durant (1965). The Age of Voltaire: a History of Civilization in Western Europe from 1715 to 1756, with Special Emphasis on the Conflict between Religion and Philosophy. The Story of Civilization: Part IX. New York: Simon and Schuster. pp. 391–93.
  13. See the Polish Wikipedia article on "Henryk Sienkiewicz."
  14. The Hitler Family Tree
  15. Family tree of Adolf Hitler
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