In 2019, jewel thieves struck the Grünes Gewölbe, or Green Vault, a museum in which capital of Saxony?

The Grünes Gewölbe, or Green Vault, is a renowned museum located in Dresden, which is the capital of the German state of Saxony. This museum is famous for its impressive collection of treasures, including exquisite jewelry and precious artifacts. The heist that took place in 2019 involved the theft of valuable items from the museum, drawing significant media attention due to the historical and cultural importance of the collection.

Dresden's historical and architectural significance also adds context to the prominence of the Green Vault, as the city itself is known for its rich cultural heritage, including numerous museums and landmarks. Other cities mentioned in the question, such as Leipzig, Stuttgart, and Lübeck, do not house the Grünes Gewölbe, making them irrelevant in the context of this particular inquiry about the museum's location. Thus, the correct answer reflects not just the event but also a greater understanding of the geographical and cultural significance of Dresden as Saxony's capital.