Ridderronde Maastricht is held in the country that  borders what country on the east?
Ridderronde Maastricht: Ridderronde Maastricht is an elite men's and women's professional road bicycle racing event held annually in Maastricht, Netherlands. Netherlands:  The European portion of the Netherlands borders Germany to the east, Belgium to the south, and the North Sea to the northwest, sharing maritime borders in the North Sea with Belgium, the United Kingdom, and Germany.
Germany