Joseph Haydn  Franz Joseph Haydn (; ; 31 March 173231 May 1809) was an Austrian composer of the Classical period. He was instrumental in the development of chamber music such as the piano trio. His contributions to musical form have earned him the epithets "Father of the Symphony" and "Father of the String Quartet". Haydn spent much of his career as a court musician for the wealthy Esterházy family at their remote estate. Until the later part of his life, this isolated him from other composers and trends in music so that he was, as he put it, "forced to become original". Yet his music circulated widely, and for much of his career he was the most celebrated composer in Europe. He was a friend and mentor of Mozart, a tutor of Beethoven, and the older brother of composer Michael Haydn. Joseph Haydn was born in Rohrau, Austria, a village that at that time stood on the border with Hungary. His father was Mathias Haydn, a wheelwright who also served as "Marktrichter", an office akin to village mayor. Haydn's mother Maria, Koller, had previously worked as a cook in the palace of Count Harrach, the presiding aristocrat of Rohrau. Neither parent could read music; however, Mathias was an enthusiastic folk musician, who during the journeyman period of his career had taught himself to play the harp. According to Haydn's later reminiscences, his childhood family was extremely musical, and frequently sang together and with their neighbours. Haydn's parents had noticed that their son was musically gifted and knew that in Rohrau he would have no chance to obtain serious musical training. It was for this reason that, around the time Haydn turned six, they accepted a proposal from their relative Johann Matthias Frankh, the schoolmaster and choirmaster in Hainburg, that Haydn be apprenticed to Frankh in his home to train as a musician. Haydn therefore went off with Frankh to Hainburg and he never again lived with his parents. Life in the Frankh household was not easy for Haydn, who later remembered being frequently hungry and humiliated by the filthy state of his clothing. He began his musical training there, and could soon play both harpsichord and violin. The people of Hainburg heard him sing treble parts in the church choir. There is reason to think that Haydn's singing impressed those who heard him, because in 1739 he was brought to the attention of Georg von Reutter, the director of music in St. Stephen's Cathedral in Vienna, who happened to be visiting Hainburg and was looking for new choirboys.