In the era of Augustus and thereafter, Roman women used more varied first names and sometimes even two first names. Naming practice became less rigid, as is evidenced among women of the Julio-Claudian dynasty. While Augustus's wives were known by their father's "gens" name (Claudia, Scribonia, and Livia) and Tiberius's wives were known by their fathers' less-known gentilical names (Vipsania Agrippina and Julia the Elder), by the third generation of the Imperial family, naming patterns had changed. Julia's daughters by her second husband Marcus Vipsanius Agrippa were Julia the Younger and Agrippina the Elder, not Vipsania Quinta and Vipsania Sexta. Likewise, Agrippina the Elder's daughters were Agrippina the Younger, Drusilla, and Livilla, and not named for their father's adoptive family, the "gens" Julia. Likewise, in the family of Octavia the Younger and Mark Antony, the naming patterns for their daughters (Antonia Major and Antonia Minor) and Octavia's by her first husband (Claudia Marcella Major and Claudia Marcella Minor) are conventional, but that for their granddaughter Livilla (daughter of Nero Claudius Drusus) is not.