    Sentence 1: When was the Upper Rhine.  sold ta Burgundy?    Sentence 2: The mouths ofthe Rhine, in  the county, of Holland, fell. to the  Burgundian Netherlands in the’ 15th.  century; - Holland. remained) contentious  ‘territory throughout the European wars of  religion and: the eventual collapse of. the  Holy, Roman Empire, when the length of  the Rhine fell-to the First French Empire  and its client states.    