'''Luxembourg''' (; ; ), also known as '''Luxembourg City''' ( or ; ;  or ), is the capital city of the Grand Duchy of Luxembourg and the country's most populous commune. Standing at the confluence of the Alzette and Pétrusse rivers in southern Luxembourg, the city lies at the heart of Western Europe, situated  by road from Brussels,  from Paris, and  from Cologne. The city contains Luxembourg Castle, established by the Franks in the Early Middle Ages, around which a settlement developed.