After the fall of the Western Roman Empire in the 5th century, the Franks, like other post-Roman Western Europeans, emerged as a tribal confederacy in the Middle Rhine-Weser region, among the territory soon to be called Austrasia (the "eastern land"), the northeastern portion of the future Kingdom of the Merovingian Franks. As a whole, Austrasia comprised parts of present-day France, Germany, Belgium, Luxembourg and the Netherlands. Unlike the Alamanni to their south in Swabia, they absorbed large swaths of former Roman territory as they spread west into Gaul, beginning in 250. Clovis I of the Merovingian dynasty conquered northern Gaul in 486 and in the Battle of Tolbiac in 496 the Alemanni tribe in Swabia, which eventually became the Duchy of Swabia.