Overview
The Landgraviate of Brabant was a small imperial fiefdom and landgraviate of the Holy Roman Empire, located west of Brussels between the Dender and Zenne rivers in the Low Countries. Founded in 1085 CE, it was assigned by Emperor Henry IV to Henry III, Count of Louvain and Brussels, following the death of Hermann II, Count Palatine of Lotharingia. This marked the earliest known use of the term "landgrave." In 1183 CE, Emperor Frederick Barbarossa formally merged the landgraviate with the counties of Louvain and Brussels, elevating them into the Duchy of Brabant, with Henry I becoming its first duke.
Historical Periods
County of Brabant (1260–1271)
1260 CE – 1271 CE
Area: 11,927 km²
County of Brabant (1272–1293)
1272 CE – 1293 CE
Area: 11,905 km²
County of Brabant (1294–1304)
1294 CE – 1304 CE
Area: 13,141 km²
County of Brabant (1305–1343)
1305 CE – 1343 CE
Area: 13,098 km²
County of Brabant (1344–1362)
1344 CE – 1362 CE
Area: 13,032 km²
County of Brabant (1363–1384)
1363 CE – 1384 CE
Area: 13,053 km²
County of Brabant (1385–1394)
1385 CE – 1394 CE
Area: 13,075 km²
County of Brabant (1395–1401)
1395 CE – 1401 CE
Area: 13,120 km²
County of Brabant (1402–1414)
1402 CE – 1414 CE
Area: 14,144 km²
County of Brabant (1415–1421)
1415 CE – 1421 CE
Area: 23,307 km²
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