Richard Wagner
Richard Wagner (1813-1883) was a German composer, conductor and theatre director.
He is most famous for his many operas, for which he wrote the librettos as well as the music. His crowning achievement is considered the Ring Cycle of four operas based on Norse legend.
This website contains a piano accompaniment track for an instrumental arrangement of Wagners Wedding March, from his opera Lohengrin. A link can be found below.