Some more examples:
Bach: although Johann Sebastian maybe does not count as classical, surely his sons do.
An artist named Heinrich Winter (1788-1825) published a series of lithographs of famous composers (Portraite der berühmtesten Compositeurs der Tonkunst) that included Maximilian III Joseph, Kurfürst von Bayern (1727-1777) and his sister Maria Antonia Walburga, Kurfürstin von Sachsen (1724-1780).
Berkeley: Sir Lennox Berkeley and his son Michael, Lord Berkeley of Knighton, are probably too modern for this list.
Cannabich: Christian and his son Carl.
Habsburg and Habsburg-Lorraine: several members of this dynasty were apparently composers. Archduke Rudolf, the friend of Beethoven, is now solely remembered for his Diabelli variation. Emperors Ferdinand III, Leopold I, and Josef I, seem to have written music, but, judging from their dates, it would be baroque.
Moritz, Landgraf von Hessen-Kassell, and Ernst Ludwig, Landgraf von Hessen-Darmstadt, wrote baroque music. Alexander Friedrich, Landgraf von Hessen (1863-1945), who was born blind, was also a composer, but wrote romantic chamber music.
Siegfried and Rued Langgaard.
Otto Mahler was described by his brother Gustav as the more gifted, but killed himself aged 21.
Maria Anna Mozart wrote music that was praised by her brother Wolfgang, but it has not survived.
Josef Pembaur, Senior and Junior.
King Friedrich II of Prussia played the flute and was also a composer in the baroque style, as were his sisters Amalie and Wilhelmine. The dynasty also produced two princes name Louis Ferdinand who were both composers. The first, born 1772, was a nephew of King Friedrich II, and wrote classical chamber music, but he was also a general, and was killed in 1806. The second, born 1907, died 1994, was a grandson of Wilhelm II, and seems to have written for brass band, as an LP of his compositions was recorded by Polizeiorchester Potsdam.
Rubinstein, Anton and Nikolay.
Bach: although Johann Sebastian maybe does not count as classical, surely his sons do.
An artist named Heinrich Winter (1788-1825) published a series of lithographs of famous composers (Portraite der berühmtesten Compositeurs der Tonkunst) that included Maximilian III Joseph, Kurfürst von Bayern (1727-1777) and his sister Maria Antonia Walburga, Kurfürstin von Sachsen (1724-1780).
Berkeley: Sir Lennox Berkeley and his son Michael, Lord Berkeley of Knighton, are probably too modern for this list.
Cannabich: Christian and his son Carl.
Habsburg and Habsburg-Lorraine: several members of this dynasty were apparently composers. Archduke Rudolf, the friend of Beethoven, is now solely remembered for his Diabelli variation. Emperors Ferdinand III, Leopold I, and Josef I, seem to have written music, but, judging from their dates, it would be baroque.
Moritz, Landgraf von Hessen-Kassell, and Ernst Ludwig, Landgraf von Hessen-Darmstadt, wrote baroque music. Alexander Friedrich, Landgraf von Hessen (1863-1945), who was born blind, was also a composer, but wrote romantic chamber music.
Siegfried and Rued Langgaard.
Otto Mahler was described by his brother Gustav as the more gifted, but killed himself aged 21.
Maria Anna Mozart wrote music that was praised by her brother Wolfgang, but it has not survived.
Josef Pembaur, Senior and Junior.
King Friedrich II of Prussia played the flute and was also a composer in the baroque style, as were his sisters Amalie and Wilhelmine. The dynasty also produced two princes name Louis Ferdinand who were both composers. The first, born 1772, was a nephew of King Friedrich II, and wrote classical chamber music, but he was also a general, and was killed in 1806. The second, born 1907, died 1994, was a grandson of Wilhelm II, and seems to have written for brass band, as an LP of his compositions was recorded by Polizeiorchester Potsdam.
Rubinstein, Anton and Nikolay.