concubinatus

He was the son of Constantius Chlorus by his first, informal marriage, called concubinatus, with Helena, a woman of inferior birth.

The Catholic Encyclopedia, Volume 4: Clandestinity-Diocesan Chancery 1840-1916 1913

The Church rejected all class distinctions in marriage, and regarded informal marriages (the so-called concubinatus) as true marriages, in so far as they were lasting and monogamous.

The Catholic Encyclopedia, Volume 4: Clandestinity-Diocesan Chancery 1840-1916 1913

Not being able to achieve it, especially among those cultures derived from the barbarian, by the use of a concubinatus or non-dignitas form, they have led the way in breaking up the dignitas form.

Archive 2008-02-24 papabear 2008

Other concubinatus besides those mentioned were placed at a disadvantage in regard to property, and the rights of inheritance of the children and the concubines were restricted.

The Catholic Encyclopedia, Volume 4: Clandestinity-Diocesan Chancery 1840-1916 1913

Constantine, however, increased the difficulties of the concubinatus, and forbade senators and the higher officials in the State and in the pagan priesthoods to contract such unions with women of lower rank (feminoe humiles), thus making it impossible for them to marry women belonging to the lower classes, although his own mother was of inferior rank.

The Catholic Encyclopedia, Volume 4: Clandestinity-Diocesan Chancery 1840-1916 1913

_concubinatus_, but they were not looked on as its end.

A History of Rome During the Later Republic and Early Principate 1885