Prince of Denmark's March

The Prince of Denmark's March (Danish: Prins Jørgens March), commonly called the Trumpet Voluntary, is a musical composition (a march) written c. 1700 by English baroque composer Jeremiah Clarke (who was the first organist of the then newly rebuilt St Paul's Cathedral).

For many years the piece was attributed incorrectly to Clarke's elder and more widely known contemporary Henry Purcell. The misattribution emanated from an arrangement for organ published in the 1870s by William Spark (the town organist of Leeds, England). The arrangement was later adapted by Sir Henry Wood in his well-known arrangement for trumpet, string orchestra, and organ.

The oldest source is a collection of keyboard pieces published in 1700. A contemporary version for wind instruments also survives. According to some sources, the march was written in honour of Prince George of Denmark, husband of Queen Anne of Great Britain.

Clarke also composed "King William's March" in honour of Prince George's brother-in-law William III.

Popular as wedding music, the march was played during the wedding of Lady Diana Spencer and Prince Charles at St Paul's Cathedral in 1981 and during the wedding of Prince Joachim of Denmark and Alexandra Manley in 1995.

...
Wikipedia