Ronald Mourad Cohen
Sir Ronald Mourad Cohen( born 1 August 1945) is an Egyptian- born British businessman and political figure.
He is the chairman of The Portland Trust and Bridges Ventures.
He has been described as" the father of British venture capital" and" the father of social investment".
Alonso Mudarra
Alonso Mudarra( c. 1510 – April 1, 1580) was a Spanish composer of the Renaissance, and also played the vihuela, a guitar- shaped string instrument.
He was an innovative composer of instrumental music as well as songs, and was the composer of the earliest surviving music for the guitar.
Cleomenes II
Cleomenes II( died 309 BC) was Agiad King of Sparta from 369 to 309 BC.
The son of Cleombrotus I, he succeeded his brother Agesipolis II.
He was the father of Acrotatus I, the father of Areus I, and of Cleonymus, the father of Leonidas II.
Yasuichi Oshima
He is the father of manga artist Towa Oshima.
Lars Eliasson
He is the father of the later Member of Parliament Anna Eliasson.
Östen Mäkitalo
Östen Mäkitalo( 27 August 1938 – 16 June 2011) was a Swedish electrical engineer.
He is considered to be the father of the Nordic Mobile Telephone( NMT) system and many times the father of cellular phone.
Pydimarri Venkata Subba Rao
Pydimarri Venkata Subba Rao( June 10, 1916 – 1988) was a Telugu author who is best remembered as the composer of the National Pledge of India.
Obata Toramori
He was the father of Obata Masamori.
Adelaide (Beethoven)
Adelaide, Op. 46,  is a song for solo voice and piano composed in about 1795 by Ludwig van Beethoven.
The text is a poem in German by Friedrich von Matthisson (1761–1831).
Ludwig van Beethoven
Ludwig van Beethoven
(baptised 17 December 177026 March 1827) was a German composer and pianist.
A crucial figure in the transition between the classical and romantic eras in classical music
, he remains one of the most recognized and influential musicians of this period, and is considered to be one of the greatest composers of all time.
Beethoven was born in Bonn, the capital of the Electorate of Cologne, and part of the Holy Roman Empire.
He displayed his musical talents at an early age and was vigorously taught by his father Johann van Beethoven, and was later taught by composer and conductor Christian Gottlob Neefe.
At age 21, he moved to Vienna and studied composition with Joseph Haydn.
Beethoven then gained a reputation as a virtuoso pianist, and was soon courted by Karl Alois, Prince Lichnowsky for compositions, which resulted in Opus 1 in 1795.
The piece was a great critical and commercial success, and was followed by Symphony No. 1 in 1800.
This composition was distinguished for its frequent use of "sforzandi", as well as sudden shifts in tonal centers that were uncommon for traditional symphonic form, and the prominent, more independent use of wind instruments.
In 1801, he also gained notoriety for his six String Quartets and for the ballet
"The Creatures of Prometheus".
During this period, his hearing began to deteriorate, but he continued to conduct, premiering his third and fifth symphonies in 1804 and 1808, respectively.
His condition worsened to almost complete deafness by 1811, and he then gave up performing and appearing in public.
During this period of self exile, Beethoven composed many of his most admired works; his seventh symphony premiered in 1813, with its second movement, "Allegretto", achieving widespread critical acclaim.
He composed the piece "Missa Solemnis" for a number of years until it premiered 1824, which preceded his ninth symphony, with the latter gaining fame for being among the first examples of a choral symphony.
In 1826, his fourteenth String Quartet was noted for having seven linked movements played without a break, and is considered the final major piece performed before his death a year later.
His career is conventionally divided into early, middle, and late periods; the "early" period is typically seen to last until 1802, the "middle" period from 1802 to 1812, and the "late" period from 1812 to his death in 1827.
During his life, he composed nine symphonies; five piano concertos; one violin concerto; thirty-two piano sonatas; sixteen string quartets; two masses; and the opera "Fidelio".
Other works, like Für Elise, were discovered after his death, and are also considered historical musical achievements.
Beethoven's legacy is characterized for his innovative compositions, namely through the combinations of vocals and instruments, and also for widening the scope of sonata, symphony, concerto, and quartet, while he is also noted for his troublesome relationship with his contemporaries.

Question: Who is the father of the composer of song Adelaide (Beethoven)?
Answer: Johann van Beethoven