Overview
Titus Flavius T. f. T. n. Clemens was a Roman politician and cousin of the emperor Domitian, with whom he served as consul from January to April in AD 95. Shortly after leaving the consulship, Clemens was executed, allegedly for atheism, although the exact circumstances remain unclear. Over time, he came to be regarded as an early Christian martyr.
Biography
Clemens was the son of Titus Flavius Sabinus, consul suffectus in AD 69, and a brother of Titus Flavius Sabinus, consul in AD 82. The emperor Vespasian was his paternal great-uncle, while the emperors Titus and Domitian were his father's cousins.
As a child, Clemens was besieged along with his family in the capitol, while his great-uncle Vespasian's soldiers were approaching Rome. His grandfather, Vespasian's brother T. Flavius Sabinus, consul in AD 47, was captured and slain by the forces of Vitellius, who burnt the capitol, but the rest of the family escaped.
Clemens' brother was consul with Domitian, shortly after the latter's accession, but the emperor put his cousin to death on the pretext that the herald proclaiming him consul had called him Imperator. Suetonius claims that Domitian was motivated by his love for his cousin's wife, Julia Flavia (who, as the daughter of his brother Titus, was also his niece).
From Wikipedia (CC BY-SA 4.0).