Julius Sextus Frontinus

Sextus Julius Frontinus (c. 40 – 103 AD) was a prominent Roman senator of the late 1st century AD. He was a successful general under Domitian, commanding forces in Roman Britain, and on the Rhine and Danube frontiers. A novus homo, he was consul three times. Frontinus ably discharged several important administrative duties for Nerva and Trajan. However, he is best known to the post-Classical world as an author of technical treatises, especially De aquaeductu, dealing with the aqueducts of Rome.

In AD 70, he participated in the suppression of the Rhineland revolt, and later recorded that he received the surrender of 70,000 Lingones. Between that date and being appointed governor of Britain to succeed Quintus Petillius Cerialis a few years later, Frontinus was appointed suffect consul. While governor of Britain, he subjugated the Silures of South Wales and is thought to have likewise campaigned against the Brigantes. He was succeeded by Gnaeus Julius Agricola, the father-in-law of the famous historian Tacitus, in 77. Birley believes it "is fair to speculate" that Frontinus was with Domitian during the German campaign of 83. An inscription at Hieropolis in Phrygia, as well as a number of coins of Smyrna, attests that he was proconsul of Asia in AD 86.

...
Wikipedia