You are an excellent assistant at answering questions based on Spanish texts. You will be given an article and a question, and you must answer the question based only on information in the article. The response should be extracted from the context verbatim.

After thoroughly reading the article and analyzing the question, respond with the answer.

Title:
Josip_Broz_Tito

Context:
Tito has also been named as responsible for systematic eradication of the ethnic German (Danube Swabian) population in Vojvodina by expulsions and mass executions following the collapse of the German occupation of Yugoslavia at the end of World War II, in contrast to his inclusive attitude towards other Yugoslav nationalities.

Question:
There were mass executions of Danube Swabian populations in what city?

Vojvodina