Brian Sewell on his long-standing love of "Mad" King Ludwig II of Bavaria, who built the ultimate fantasy castle at Neuschwanstein. From his first fateful glimpse of one of Ludwig's palaces, Brian's been fascinated with the eccentric King, and his mysterious death, and has become personally involved in the story of his life. Presenter Matthew Parris and contributor Simon Winder find out more...

Producer Beth O'Dea.