Accepted by some groups of people and condemned by another ones informal relationships
have been recognized but not defined by the Polish legislator. In the absence of
the legal definition it is a task of legal scholars and judges to establish what kind of
relationships can be classified as falling under the heading of the equivocal expressions
used by the legislator in legal acts. Traditionally, concubinage is deemed as a relationship
of that kind. However, it is highly controversial how this type of informal union
should be defined. In the first part of this paper the author presents opinions of the
legal scholars and judges on the constitutive features of concubinage and proposed
definitions of the term. In the second part he analyzes presented data and proposes
a typological definition of concubinage which on the ground of Polish legal tradition
can be described as a heterosexual, stable, (not necessarily) notorious relationship of
two (or more) people who live together (or not). The cohabitants cannot be legally married
and have to form a life communion (characterized by the existence of emotional,
physical and economic sensu largo bonds). The union have to be seen by them as an
autotelic value and cannot be (even potentially) against the [email protected] w Białymstok