Crossword clue: a city in western germany near the dutch and belgian borders; formerly it was charlemagne's northern capital

The most common answer is aachen (6 letters).

1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

Possible answers

aachen 6 letters wn-def

a city in western Germany near the Dutch and Belgian borders; formerly it was Charlemagne's northern capital