Question: What is this country whose capital and largest city is the place where the Romanian musicologist, composer, conductor, and teacher Eusebius Mandyczewski passed away?
Sentence (from "Vienna"): Until the beginning of the 20th century, it was the largest German-speaking city in the world, and before the splitting of the Austro-Hungarian Empire in World War I, the city had 2 million inhabitants.
Relevant evidence: No