Question: James Robertson helped established the association that is in what modern-day town?
Sentence (from "Golubac Fortress"): The Golubac Fortress (Serbian: Голубачки град or "Golubački grad", Hungarian: "Galambóc vára" , Bulgarian: Гълъбец , Romanian: "Cetatea Golubăț" , Turkish: "Güvercinlik Kalesi" ) was a medieval fortified town on the south side of the Danube River, 4 km downstream from the modern-day town of Golubac, Serbia.
Relevant evidence: No