Impediments to marriage are classified according to many different criteria.

Under the 1983 code of Canon law adultery is no longer an impediment to marriage.

In assessing this story it may well be relevant that no reputable source can tell what the exact impediment to marriage was.

In practice, ordination was not an impediment to marriage; therefore some priests did marry even after ordination."

"Homosexuals face a legal impediment to marriage," said Barbara Janes, the Bronx hospital's spokeswoman.

Radā': a concept from Islamic jurisprudence meaning "the suckling which produces the legal impediment to marriage of foster-kinship"

Peter Parkes mentions that milk-kinship was "further endorsed as a canonical impediment to marriage by several eastern Christian churches".

Public Honesty (Decency) is a diriment impediment to marriage, a prohibition that prevents a marriage bond from being formed.

The Council of Trent insisted that the abduction in raptus must be for the purpose of marriage to count as an impediment to marriage.

It has proved valuable for the discovery of canonical impediments to marriage through relationship, and has given birth to a copious genealogical literature of less comprehensiveness.

The Roman Catholic Church abolished the requirement in 1983, as greater mobility had limited its usefulness as a means of determining whether there were impediments to marriage.

She is sometimes alleged to be a daughter of Stefan Nemanja of Serbia, but this relationship is questionable and would have caused various canonical impediments to marriages between their descendants.

The relationships that give raise to the impediment have varied over time, and there are varied views between various Christian denominations as to which relationships result in an impediment to marriage.

The New Catholic Encyclopedia states: "The Second Lateran Council (1139) seems to have enacted the first written law making sacred orders a diriment impediment to marriage for the universal Church."

Then in the 12th century the Western Church declared that Holy Orders were not merely a prohibitive but a diriment canonical impediment to marriage, making marriage by priests invalid and not merely forbidden.

The Council of Trent (1545-1563) limited the impediment to marriage on account of affinity when the affinity is created out of marriage (eg., by force or extra-matrimonial intercourse) to the second degree of affinity.

He was inclined to the opinion, generally held in France in his day, that the State had the power to create diriment impediments to marriage among Catholics; but he abandoned it as soon as it was disapproved at Rome.

In the Latin Church, only the Holy See can authentically declare when divine law prohibits or invalidates a marriage, and only the Holy See has the right to establish for those who are baptised other impediments to marriage (canon 1075).

De veto et voti redemptione (iii, 15) in 6 , Boniface VIII declared authoritatively that the vow of chastity, consecrated by the reception of major orders, or by religious profession in an approved institute, created a diriment impediment to marriage.

The break between some Protestants and the Roman Catholic Church was over what would constitute an impediment to marriage (the Church of England, for example, recognised remarriage after divorce in some circumstances), rather than over the means by which impediments to marriage should be identified.