Marcus Porcius M. f. M. n. Cato Salonianus (born c. 154 BC) was the younger son of Cato the Elder, and grandfather of Marcus Porcius Cato Uticensis, also known as "Cato the Younger". Salonianus' father was Marcus Porcius Cato, consul in 195 BC, and censor in 184. Celebrated for his courage, austerity, and strict moral code, the elder Cato, who already had a grown son by his first wife, Licinia, took a second wife at an advanced age, choosing the daughter of his client and scribe, Salonius. He was eighty years old when his younger son was born, and since both sons bore the praenomen Marcus, they later came to be referred to as Cato Licinianus and Cato Salonianus, after their mothers.