Aventinensis is a cognomen of ancient Rome, a branch of the Genucia gens. This was a plebeian family, the name being derived from the Aventine Hill, which was the quarter of Rome peculiar to the plebeians.
Notable people with this cognomen include:
Lucius Genucius Aventinensis, Roman consul Lucius Genucius (Aventinensis), author of the Leges Genuciae Gnaeus Genucius Aventinensis, consul in 363 BCE Lucius Genucius Aventinensis (consul 303 BC), Roman consul
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