Question: Where was the place of death of Clara Schumann's husband?
Answer: Endenich

What is now thought to have been a combination of bipolar disorder and perhaps mercury poisoning led to "manic" and "depressive" periods in Schumann's compositional productivity. After a suicide attempt in 1854, Schumann was admitted at his own request to a mental asylum in Endenich near Bonn. Diagnosed with "psychotic melancholia", he died of pneumonia two years later at the age of 46, without recovering from his mental illness