Russell Davies reassesses the work of the German poet Heinrich Heine, born 200 years ago this week in Germany during a period of great European upheaval and revolution.
Heine is best remembered today through the musical settings of his poems by Schubert and Schumann, and his evocation of the Lorelei, the siren of the Rhine.
But Heine's work and life were far richer than this.
His writings included great lyrical poetry, travelogues, satires and critical journalistic portraits of the conditions of his day.
In 1827, he encountered Shylock, a character which symbolises his fierce independence and Jewish identity.