Gustav Walter was a German operatic lyric tenor who sang leading roles for more than 30 years at the Vienna Staatsoper in Austria. He was a highly regarded interpreter of the vocal music of Wolfgang Amadeus Mozart and the lighter tenor roles composed by Richard Wagner. Walther also created the role of Assad in the world premiere of Karl Goldmark's Die Königin von Saba and performed in some Italian and French operas.

Bílina is a town in Teplice District in the Ústí nad Labem Region of the Czech Republic. It has about 15,000 inhabitants. It is known for its spas and as a source of the strongly mineralized water, Bílinská kyselka. The historic town centre is well preserved and is protected by law as an urban monument zone.