The Conventus lucensis was a Roman administrative unit located in the northwest of the Iberian Peninsula, in Gallaecia. Its name derives from its capital Lucus Augusti

Lucus Augusti

Lucus Augusti is the Latin name of two different ancient places in the Roman Empire:*Lugo, a city in Spain*Luc-en-Diois, a city in France...

 (ancient Lugo

Lugo

Lugo is a city in northwestern Spain, in the autonomous community of Galicia. It is the capital of the province of Lugo. The municipality had a population of 97,635 in 2010, which makes is the fourth most populated city in Galicia.-Population:...

), the most important city in this convent, economical and administrative center of the country. Its Southern borders were marked by the river Verdugo, and the river Sil (limit with the Conventus bracarensis

Conventus bracarensis

The Conventus bracarensis , was a Roman administrative unit located in the northwest of the Iberian Peninsula, in Gallaecia. Its name derives from its capital Bracara Augusta , the most important city in this convent, economical and administrative center of the country...

, in the north the coastline from Morrazo until river Navia (current Asturias), in the East the Ancares' mountains and the Conventus asturicensis.