Hermann of Reichenau

Hermann of Reichenau (also called Hermannus Contractus or Hermannus Augiensis) (1013 July 18 – 1054 September 24) was an 11th-century scholar, composer, music theorist, mathematician, and astronomer. Hermannus was a son of the duke of Altshausen. He was crippled by a paralytic disease from early childhood. He spent most of his life in the abbey of Reichenau, an island on Lake Constance. Hermannus contributed to all four arts of the quadrivium. He was renowned as a musical composer (among his surviving works are officia for St. Afra and St. Wolfgang). He also wrote a treatise on the science of music, several works on geometry and arithmetics and astronomical treatises (including instructions for the construction of an astrolabe, at the time a very novel device in Christian Europe). As a historian, he wrote a detailed chronicle from the birth of Christ to his own present day, for the first time compiling the events of the 1st millennium AD scattered in various chronicles in a single work, ordering them after the reckoning of the Christian era. His disciple Berthold of Reichenau was its continuator.
He was beatified (cultus confirmed) in 1863. 
==External links==
*
*Catholic Encyclopedia
*Hermannus Contractus German language site with a collection of original texts
*Catholic Forum
* musicologie.org Hermannus Contractus et la théorie de la musique. Sources, éditions, bibliographie, commentaires
Category:Medieval European mathematics
Category:Beatified people
Category:Chroniclers
Category:Medieval composers
Category:German music theorists
Category:German astrologers
Category:German people with disabilities
Category:1013 births
Category:1054 deaths
Category:11th-century historians
Category:11th-century mathematicians
Category:11th-century German people
Category:Religion and science
Category:11th-century venerated Christians
cs:Heřman z Reichenau
de:Hermann von Reichenau
es:Hermann von Reichenau
fr:Herman de Reichenau
it:Ermanno il contratto
ht:Hermann von Reichenau
hu:Hermannus Contractus
nl:Herman van Reichenau
ja:ヘルマヌス・コントラクトゥス
pl:Herman z Reichenau
ru:Герман из Райхенау
sl:Hermann von Reichenau
fi:Hermannus Contractus
sv:Hermann av Reichenau