text:  Marcus Cocceius Nerva was born in the village of Narni , 50 kilometers north of Rome , to the family of Marcus Cocceius Nerva , Suffect Consul in 40 , and Sergia Plautilla . Ancient sources report the date as either 30 or 35 . He had at least one attested sister , named Cocceia , who married Lucius Salvius Titianus Otho , the brother of the future Emperor Otho . 
  