Paganini Caprice 20
Most of you will be aware that at some point Paganini annotated a copy of the 24 caprices with dedications. But who was the dedicatee of Number 20? The name is Carlo Gignami, but a quick google only finds him in relation to Paganini - it would be interesting to find out if any one knows who he was!
Possibly the inventor of the shoulder rest? That would be cause to erase his name from history ...