original_query: What is the disputed opinion regarding the church that Otto the Great gave to the Worms Cathedral Foundation in 937? What is the most relevant chunk to answer the query?
query: What is the disputed opinion regarding the church that Otto the Great gave to the Worms Cathedral Foundation in 937, in relation to Neunkirchen am Potzberg?
answer: Ernst Christmann believed the donated church was in Neunkirchen am Potzberg, but modern historians like Dolch and Greule disagree, placing it in a different Neunkirchen near Kübelberg based on 10th-century documents describing its location.