(masculine) Pliny the Elder, Gaius Plinius Secundus (23–79 AD): an ancient Roman nobleman, scientist and historian, author of Naturalis Historia, "Pliny's Natural History"
(masculine) Pliny the Younger, Gaius Plinius Caecilius Secundus (63–ca. 113): an ancient Roman statesman, orator, and writer, a great-nephew of Pliny the Elder