Question: What is the capital of Lys?
Answer: Bruges
Brugge

title: Lys (department)
text: Lys (French: [lis], Dutch: Leie) was a department of the French First Republic and French First Empire in present-day Belgium. It was named after the river Lys (Leie). It was created on 1 October 1795, when the Austrian Netherlands and the Prince-Bishopric of Liège were officially annexed by the French Republic. Prior to this annexation, its territory was part of the County of Flanders. Its Chef-lieu was Bruges.