Prohibited degree of kinship

In law, a prohibited degree of kinship refers to a degree of consanguinity (blood relatedness) and sometimes affinity (relation by marriage or sexual relationship) between persons that results in certain actions between them being illegal. Two major examples of prohibited degrees are found in incest and nepotism. Incest refers to sexual relations and marriage between closely related individuals; nepotism is the preference of blood-relations in the distribution of a rank or office. An incest taboo against sexual relations between parent and child or two full-blooded siblings is a cultural universal. Taboos against sexual relations between individuals of other close degrees of relationship vary, but stigmatization of unions with full siblings and with direct descendants are widespread.

## Contents

* 1 Marital prohibitions
* 1.1 Medieval canon law
* 1.2 Australia
* 1.3 England and Wales, and the World-wide Anglican Communion
* 1.4 South Korea
* 1.5 United States
* 1.6 South Africa
* 2 Jury service
* 2.1 United States
* 3 See also
* 4 References
* 5 External links

## Marital prohibitions

### Medieval canon law

Roman civil law prohibited marriages within four degrees of consanguinity.[1] This was calculated by counting up from one prospective partner to the common ancestor, then down to the other prospective partner.[2] The first prohibited degree of consanguinity was a parent-child relationship while a second degree would be a sibling relationship. A third degree would be an uncle/aunt with a niece/nephew while fourth degree was between first cousins.[2] Any prospective marriage partner with a blood relationship outside these prohibited degrees was considered acceptable.[2]

The Roman Catholic Church and Eastern Orthodox Church have a long history of marital prohibitions,[citation needed] called impediments to marriage, which limit the marriage of two closely related relatives. Initially, canon law followed Roman civil law until the early 9th century, when the Western Church increased the number of prohibited degrees from four to seven.[3] The method of calculation was also changed to simply count the number of generations back to the common ancestor.[4] This meant that marriage to anyone up to and including a sixth cousin was prohibited. The Fourth Lateran Council of 1215 decreed a change from seven prohibited degrees back to four (but retaining the same method of calculating; counting back to the common ancestor).[5]

### Australia

In Australia , the Marriage Act 1961 prohibits a marriage to a direct ancestor or descendant or sibling (whether full sibling or half sibling), including those arising from a legal adoption. Such marriages are void.[6]

### England and Wales, and the World-wide Anglican Communion

The 1662 Book of Common Prayer of the Church of England, long used in various forms through a broad swathe of Anglicanism, included a Table of Kindred and Affinity listing the prohibited degrees of kinship within which one could not marry describing in detail the cases in which marriage was forbidden due to consanguinity or marital affinity.[7] The list was enacted by the Marriage Act 1949 which with significant changes continues to apply in England and Wales.[8] The list was cut back by the Marriage (Prohibited Degrees of Relationship) Act 1986, by deleting from the list prohibitions based on affinity relationships, and added to in other respects. Marriages that continue to be prohibited in England and Wales by the 1949 Act are as follows:

Prohibited
to men | Prohibited
to women

|

Mother | Father
Daughter | Son
Father's mother
(grandmother) | Father's father
(grandfather)
Mother's mother
(grandmother) | Mother's father
(grandfather)
Son's daughter
(granddaughter) | Son's son
(grandson)
Daughter's daughter
(granddaughter) | Daughter's son
(grandson)
Sister | Brother
Father's sister
(aunt) | Father's brother
(uncle)
Mother's sister
(aunt) | Mother's brother
(uncle)
Brother's daughter
(niece) | Brother's son
(nephew)
Sister's daughter
(niece) | Sister's son
(nephew)

The Children Act 1975 added the following prohibitions:

Prohibited to men | Prohibited to women

|

Adoptive mother or former adoptive mother | Adoptive father or former adoptive father
Adoptive daughter or former adoptive daughter | Adoptive son or former adoptive son

The Marriage Act 1949 also prohibited marriage to the following affinity relations, but these were repealed by the Marriage (Prohibited Degrees of Relationship) Act 1986:[9]

Prohibited
to men | Prohibited
to women

|

Wife's mother | Husband's father
Wife's daughter | Husband's son
Father's wife | Mother's husband
Son's wife | Daughter's husband
Father's father's wife | Father's mother's husband
Mother's father's wife | Mother's mother's husband
Wife's father's mother | Husband's father's father
Wife's mother's mother | Husband's mother's father
Wife's son's daughter | Husband's son's son
Wife's daughter's daughter | Husband's daughter's son
Son's son's wife | Son's daughter's husband
Daughter's son's wife | Daughter's daughter's husband

The Marriage (Prohibited Degrees of Relationship) Act 1986 prohibits a marriage to the following, until both parties are aged 21 or over, and provided that the younger party has not at any time before attaining the age of 18 been a child of the family in relation to the other party:

Daughter of former wife | Son of former husband

|

Former wife of father | Former husband of mother
Former wife of father’s father | Former husband of father’s mother
Former wife of mother’s father | Former husband of mother’s mother
Daughter of son of former wife | Son of son of former husband
Daughter of daughter of former wife | Son of daughter of former husband

The Marriage (Prohibited Degrees of Relationship) Act 1986 also prohibits a marriage to the following:

Mother of former wife, until the death of both the former wife and the father of the former wife | Father of former husband, until after the death of both the former husband and the mother of the former husband

|

Former wife of son, until after the death of both his son and the mother of his son | Former husband of daughter, until after the death of both her daughter and the father of her daughter

The Marriage Act 1949 (Remedial) Order 2007[10] accepted the ruling of the European Court of Human Rights and removed the ban on marriage with a former mother-in-law/daughter-in-law.

### South Korea

In South Korea it had historically been forbidden to marry someone with the same surname and clan regardless of the distance of the relation, but this law was ruled unconstitutional in 1999. Conservative Lutherans also prohibit marriage within close degrees of consanguinity and affinity, even if not specifically outlawed by the state. [11]

### United States

Laws regarding first-cousin marriage in the United States

First-cousin marriage is legal

Allowed with requirements or exceptions

Banned with exceptions1

Statute bans first-cousin marriage1

Criminal offense1

* * *

1Some states recognize marriages performed elsewhere, especially when the spouses were not residents of the state when married.

As of February 2010[update], 30 U.S. states prohibit most or all marriage between first cousins, and a bill is pending in Maryland that would prohibit most first cousins from marrying.[12] Six states prohibit marriages between first cousins once removed.[13] Some states that prohibit cousin marriage recognize cousin marriages performed in other states.[14]

### South Africa

In South Africa, sexual relations are prohibited within the first degree of affinity, that is, where one person is the direct ancestor or descendant of the spouse of the other person.[15]

## Jury service

### United States

Statutes in the U.S. state of Georgia disqualify a juror if that person is related "by consanguinity or affinity" to any party "within the sixth degree as computed according to the civil law".[16]

Virginia rulings in Jaques v. Commonwealth, 51 Va. (10 Gratt.) 690 (1853), stated the long-standing, common-law rule disqualifying a venireman (juror) who is related, within the ninth degree of consanguinity or affinity, to a party to a suit.[17]

## See also

* Cousin marriage
* Inbreeding
* Affinity (law)
* Mahram

## References

1. ↑ de Colquhoun, Patrick MacChombaich, A summary of the Roman civil law (William Benning and Co., Cambridge, 1849), p. 513
2. ↑ 2.0 2.1 2.2 Bouchard, Constance B., 'Consanguinity and Noble Marriages in the Tenth and Eleventh Centuries', Speculum, Vol. 56, No. 2 (Apr., 1981), p. 269
3. ↑ Bouchard, Constance B., 'Consanguinity and Noble Marriages in the Tenth and Eleventh Centuries', Speculum, Vol. 56, No. 2 (Apr., 1981), pp. 269-70
4. ↑ Bouchard, Constance B., 'Consanguinity and Noble Marriages in the Tenth and Eleventh Centuries', Speculum, Vol. 56, No. 2 (Apr., 1981), p. 270
5. ↑ The History of Medieval Canon Law in the Classical Period, 1140-1234, Ed. Wilfried Hartmann, Kenneth Pennington (The Catholic University of America Press, 2008), p. 377
6. ↑ "Marriage Act 1961, s 23B". http://www.austlii.edu.au/au/legis/cth/consol_act/ma196185/s23b.html.
7. ↑ Table of Kindred and Affinity
8. ↑ "Marriage Act 1949 (c. 76)". The UK Statute Law database. http://www.statutelaw.gov.uk/content.aspx?activeTextDocId=1134037. Retrieved 30 Aug 2010.
9. ↑ "Marriage (Prohibited Degrees of Relationship) Act 1986 (c. 16)". The UK Statute Law database. http://www.statutelaw.gov.uk/content.aspx?LegType=All+Legislation&searchEnacted=0&extentMatchOnly=0&confersPower=0&blanketAmendment=0&sortAlpha=0&PageNumber=0&NavFrom=0&parentActiveTextDocId=1548710&ActiveTextDocId=1548712&filesize=18442. Retrieved 30 Aug 2010.
10. ↑ "Marriage Act 1949 (Remedial) Order 2007". The UK Statute Law database. http://www.legislation.gov.uk/uksi/2007/438/made.
11. ↑ Christian Cyclopedia article on Impediments to Marriage.
12. ↑ McGlothlen, John (February 18, 2010). "Maryland lawmaker: Ban first-cousin marriages as unsafe". The Gazette. Archived from the original on 2016-11-29. https://web.archive.org/web/20161129225938/http://www.thegazette.com/2010/02/18/maryland-lawmaker-ban-first-cousin-marriages-as-unsafe.
13. ↑ The Love That Dare Not Speak Its Surname
14. ↑ Wolfson, Evan (2004). Why marriage matters: America, equality, and gay people's right to marry. Simon & Schuster. p. 151. ISBN 978-0-7432-6458-7. https://books.google.com/books?id=u16ZRu1LVwUC&pg=PA151&lpg=PP1&focus=viewport.
15. ↑ Criminal Law (Sexual Offences and Related Matters) Amendment Act, 2007, s. 12.
16. ↑ Patterson Bank v. Gunter, 588 S.E.2d 270 (2003) 263 Ga. App. 424
17. ↑ Gray v. Com., 311 SE 2d 409 - Va: Supreme Court 1984

## External links

* "Consanguinity" – Catholic Encyclopaedia
* Don't hire the family – Article regarding Texas nepotism statutes, published by the Texas Association of Counties.

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