He is possibly to be identified with the Richomeres who married Ascyla, whose son Theodemer later became king of the Franks.
When the Gothic leader Fritigern demanded hostages to secure peace from the Romans, he volunteered and departed the Roman camp to bring the other hostages safely to Fritigern, but before he arrived, some elements of the two armies got out of control and engaged, starting the famous Battle of Adrianople.
In 388, Theodosius I sent him together with his nephew Arbogastes and Promotus and Timasius against the usurper Magnus Maximus, who was defeated.
From the year 388, he served as supreme commander in the Eastern portion of the Empire (comes et magister utriusque militiae) until his death in 393.
After the death of Valentinian II, Arbogastes promoted Eugenius to be his Emperor, while he himself remained the leader and generalissimo.