Keyboard concertos by Johann Sebastian Bach soloists, were all adapted into harpsichord concertos by the composer, BWV 1058, 1054 and 1062 respectively. It is often assumed that Bach's extant violin concertos were written in his Köthen period (1717–1723): it can however not be proven from documentary evidence that any of them existed prior to around 1730. In September 1725 Bach performed organ music, accompanied by other instruments, in Dresden. The works he performed there have not been identified. More than a year later he composed several cantatas with an organ obligato part. Several movements of such cantatas were derived from earlier lost concertos, and resurfaced in
Hubertus Brandenburg katholischen deutschen Studentenverbindungen. He was a grandson of member of the German "Reichstag" Carl Brandenburg, who succeeded Ludwig Windthorst from 1891 to 1902 representing the constituency of Meppen in the Reichstag. Brandenburg died aged 85 in Osnabrück. Hubertus Brandenburg Hubertus Brandenburg (17 November 1923 - 4 November 2009) was a Roman Catholic bishop of Stockholm. He was ordained priest in Osnabrück on 20 December 1952. On 12 December 1974, he was appointed by Pope Paul VI as auxiliary bishop of Osnabrück. On 21 November 1977, he was appointed as Bishop of Stockholm. He resigned in 1998, and was succeeded by