On March 24, 1721, Johann Sebastian Bach dedicated a collection of six instrumental works to Christian Ludwig, Margrave of Brandenburg. They are referred to as the Brandenburg Concertos and considered some of the best orchestral compositions of the Baroque era.
Johann Sebastian Bach (aged 61) in a portrait by Elias Gottlob Haussmann, copy or second version of his 1746 canvas. The original painting hangs in the upstairs gallery of the Altes Rathaus (Old Town Hall) in Leipzig, Germany.
