Gallia Belgica was a province of the Roman Empire located in the north-eastern part of Roman Gaul, in what is today primarily northern France, Belgium, and Luxembourg, along with parts of the Netherlands and Germany.
Roman roads in Belgium
The Porta Nigra of Trier, capital of Gallia Belgica, constructed between 186 and 200 AD
Representation of the Low Countries as Leo Belgicus by Claes Janszoon Visscher, 1611
'Belgica Foederata' was the Latin name of the Dutch Republic.
The Roman provinces were the administrative regions of Ancient Rome outside Roman Italy that were controlled by the Romans under the Roman Republic and later the Roman Empire. Each province was ruled by a Roman appointed as governor.
Roman Empire under Augustus (31 BC – AD 14), showing the empire as of 31 BC in yellow, additions to 19 BC in dark green, additions in 9 BC in light green, and additions to AD 6 in pale green. Client states in mauve.