What does Balventius mean in Latin?

Balventius, a proper noun, means “A Roman nomen gentilicium, gens or "family name" is known chiefly from a person by”.

What is the genitive of Balventius?

The genitive singular is Balventiī. Balventius is masculine, second declension.

In classical Latin, [baɫˈwɛn.ti.ʊs]; in ecclesiastical (church) Latin, [balˈvɛn.t͡si.us].

proper noun · masculinesecond declension

Balventius m (genitive Balventiī or Balventī)

Classical[baɫˈwɛn.ti.ʊs]Ecclesiastical[balˈvɛn.t͡si.us]

masculineA Roman nomen gentilicium, gens or "family name" is known chiefly from a person by
Tum Tito Balventio, qui superiore anno primum pilum duxerat, viro forti et magnae auctoritatis, utrumque femur tragula traicitur;At length, each thigh of T. Balventius, who the year before had been chief centurion, a brave man and one of great authority, is pierced with a javelin;c. 52 BCE, Julius Caesar, Commentarii de bello Gallico 5.35
masculineTitus Balventius, a Primus pilus in the command of Quintus Titurius Sabinus in Gaul.