LĪBERTUS, LĪBERTĪNUS. Freemen (_liberi_) were either _Ingenui_
[INGENUI] or _Libertini_. _Libertini_ were those persons who
had been released from legal servitude. A manumitted slave was
_Libertus_ (that is, _liberatus_) with reference to his master; with
reference to the class to which he belonged after manumission, he was
_Libertinus_. Respecting the mode in which a slave was manumitted,
and his status after manumission, see MANUMISSIO.--At Athens, a
liberated slave was called ἀπελεύθερος. When manumitted he did not
obtain the citizenship, but was regarded as a _metoicus_ [METOICUS],
and, as such, he had to pay not only the _metoicion_ μετοίκιον but
a triobolon in addition to it. His former master became his patron
προστάτης to whom he owed certain duties.