Events Robert Schumann's Piano Concerto in A minor is completed The company that would become Brunswick Records (Brunswick-Balke-Collender) begins manufacturing pianos and other equipment in Dubuque, Iowa April 21 - Albert Lortzing's opera Undine debuts in Magdeburg. June 4 - William Fry's opera Leonora debuts in Philadelphia. October 19 - Richard Wagner's opera Tannhäuser debuts at the Dresden Hoftheater. Births May 12 - Gabriel Fauré, composer August 25 - King Ludwig II of Bavaria, the great patron of Richard Wagner. Deaths October 7 - Isabella Colbran, soprano and first wife to Gioacchino Rossini.