A widely travelled diplomat and a determined opponent of Arianism, the presence of Servatius is recorded at several synods and church councils.

[6] In his late 6th-century account, Gregory writes about Aravatius (identified by most scholars as Servatius), who was a bishop of Tongeren and died in Maastricht.

According to the Frankish bishop and historian, Aravatius lived at the time when the Huns threatened Tongeren (5th century), which does not match the 4th-century dates of the synods mentioned above.

Gregory describes how Aravatius, during a vigil at Saint Peter's tomb in Rome, had a vision in which the destruction of Tongeren was forecast (because of their sinfulness).

According to Gregory, Aravatius returned to Tongeren, brought the relics of his predecessors to Maastricht, where he died and was buried alongside the Roman road, near the bridge.

Two early vitae (biographies) place Servatius' birth in Armenia and make him a cousin of John the Baptist, and thus a distant relative of Jesus (neither were mentioned by Gregory of Tours).

Jocundus is also the author of the Miracula sancti Servatii, a sequel to the vita, describing all the miracles that happened after Servatius' death.

In Maastricht, the Eastern Orthodox Church belonging to the Russian Exarchate of the Ecumenical Patriarchate of Constantinople is also dedicated to Saint Servatius.

In many churches around the world, reliquaries, statues, stained glass windows, altar pieces and paintings of Servatius are revered.

[9] In Sri Lanka, St. Servatius' College was built around 1897 by a Belgian priest, Father Augustus Standard, on the bank of the river Nilwala at Pallimulla, Matara.