> "Janus the fifth" You're thinking along the lines of generational suffixes? There were Roman emperors who's family name (nomen gentilicium) was a number, t

> "Janus the fifth" You're thinking along the lines of generational suffixes? There were Roman emperors who's family name (nomen gentilicium) was a number, the same number being used by son, father, grandfather... not incrementing with each generation. There were also Roman emperors who's fathers had been slaves. Lucius Septimius Severus - family name means 7th Publius Helvius Pertinax - family name means honey-yellow. Son of a freed slave.