After the partition of the Frankish empire by the Treaties of Verdun (843) and of Meerssen (870), Tournai remained in the western part of the empire, which in 987 became France. The city participated in 11th-century rise of towns in the Low Countries, with a woollen cloth industry based on English wool, which soon made it attractive to wealthy merchants. An ambitious rebuilding of the cathedral was initiated in 1030. The commune's drive for independence from the local counts succeeded in 1187, and the city was henceforth directly subordinated to the French Crown, as the "seigneurie de Tournaisis", as the city's environs are called. The stone over the Scheldt, with defensive towers at either end, was built in 1290, replacing an earlier wooden structure.