thumb|300px|right|Castle Styrum before 1990
thumb|300px|right|Castle Styrum before 1990
Styrum (; sometimes spelled "Stirum") was an immediate lordship in the Holy Roman Empire, located in Mülheim an der Ruhr, North Rhine-Westphalia, Germany. It held no seat in the Diet and was circumvened by the Lordship of Broich.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).