Xwedodah

In the Old Avestan texts known as the Gathas, believed to have been written by the founder of the faith Zoroaster, Armaiti of the Amesha Spenta is referred to as the "daughter" of Ahura Mazda, the highest deity within Zoroastrianism.

[7] In the youngest Avestan text, the Vendidad, the urine of sheep, oxen, and those who marry next-of-kin are viewed as being particularly pure and devoid of corruption by Ahriman and therefore able to be used by corpse-bearers to wash and purify themselves.

[3] In Zoroastrian cosmogony as explained by the Pahlavi text Bundahishn, Ahura Mazda is said to not have sired the other divine creations but rather to have fashioned or set them in their proper places and is referred to as both "mother", through spiritual nurturing, and "father", through material development, of all existence.

[10] The Revayats, dating from the 1400s as a series of clerical communications, further solidify this broader view of xwedodah while encouraging the incestuous nature of it also noting that the practice had not been extant in centuries and the Shahnameh has it mentioned in passing.

[13] Greek sources such as Xanthus of Lydia and Ctesias of Cnidus mentioned that the Magi priesthood have sexual and matrimonial relationships with their relatives while Herodotus states that before Cambyses I this was not a Persian practice.

Roman poets Catullus and Ovid both included references to consanginous relationships in the Persian Empire and Quintus Curtius Rufus states in his histories that the Sogdian governor Sisimithres sired two sons with his own mother.

[14] Philo of Alexandria related that the products of a high-born incestuous relationship were themselves considered exaltation and noble, while the Babylonian Talmud notes cases in which situations comparable to xwedodah are both allowed and punishable but without direct mention of Zoroastrianism in the texts.

Eznik of Kolb accused Zoroaster of having developed the doctrine due to his own desires to see it propagated among his people and Jerome attached the Persians amongst Ethiopians, Medians, and Indians as those who had intercourses with the female members of their families.

Some of the earliest Greek references to non-royal incest are those by Xanthus in his book Magica, which Clement of Alexandria quoted as saying that Magi had sex with their mothers, daughters and sisters, and that Ctesias had mentioned a brother-sister marriage.

A reference can be found in the Pahlavi-Chinese bilingual tomb inscriptions in Xi'an, in which the deceased woman, from the Surin family princes, is read in Chinese as "wife" but in Pahlavi's "daughter".

Family tree of the mythical Mashya and Mashyana and their descendants.