Volantis is both one of the nine Free Cities factions and the capital of the Voltansis faction.
Volantis is ruled by Triarch Malaquo Maegyr of Volantis. It occupies Volantis, Volon Thery's, Valsar, Selhorys, Ruins of Sar Mell, Menti, Daero Valoti, Rudhy, Odrikatas, Ossenatas, Zer Sena, Noyane, Anyrota and Aeske.
The following may contain spoiler's to the games eventuality.
At some point the invading faction of the The Khizra Khalasar will enter the game and will potentially take over Volantis. This could in turn make any relationships gained with vassals of the Volantis faction worthless.