Question: Paul Keenan composes works from Anglo-Saxon texts such as the codex donated to the library of Exeter Cathedral by whom?

Passages:
The Exeter Cathedral Astronomical Clock is a fifteenth-century astronomical clock in Exeter Cathedral, England. The Church of St Mary Major, formerly Exeter Minster, was a historic church and parish in the City of Exeter, Devon, dating from the 7th century.  It pre-dated the first Exeter Cathedral by some five centuries, was rebuilt several times, but was finally demolished in 1971.  It was situated to the immediate south-west of Exeter Cathedral, the site today being a grass lawn. Paul Keenan (1 August 1956 – 26 June 2001) was a British 20th Century contemporary classical composer.  His body of composition spans 27 years, though consistently explores his fascination with both Anglo-Saxon texts (from "The Exeter Book") and the natural world. The Devon County War Memorial is a First World War memorial, designed by Sir Edwin Lutyens and situated on the cathedral green in Exeter, the county town of Devon, in the south west of England.  It is one of fifteen War Crosses designed by Lutyens to a similar specification, and one of two to serve as a civic memorial in a city.  The first proposal for the county's war memorial was to complete the construction of a cloister at Exeter Cathedral to be dedicated to the Devon's war dead, but this scheme was abandoned due to lack of funds.  After considering multiple proposals, the Devon County War Memorial Committee commissioned Lutyens to design a War Cross instead.  The committee chose to site the memorial on the green of Exeter Cathedral after scouting several locations.  A war memorial for Exeter itself was being considered concurrently, but the committees for the two projects failed to work together, resulting in two separate memorials—the county memorial by the cathedral and Exeter City War Memorial in Northernhay Gardens. The Exeter Book, Exeter Cathedral Library MS 3501, also known as the Codex Exoniensis, is a tenth-century book or codex which is an anthology of Anglo-Saxon poetry.  It is one of the four major Anglo-Saxon literature codices, along with the Vercelli Book, Nowell Codex and the Cædmon manuscript or MS Junius 11.  The book was donated to the library of Exeter Cathedral by Leofric, the first bishop of Exeter, in 1072.  It is believed originally to have contained 131 leaves, of which the first 8 have been replaced with other leaves; the original first 8 pages are lost.  The Exeter Book is the largest known collection of Old English literature still in existence. The trompette militaire is a loud majestic sounding organ stop, with brassy, penetrating tone.  It is noted for its installation in Liverpool Anglican Cathedral, on the fifth manual of the Henry Willis Organ in St Paul's Cathedral, London, and in the 1968 rebuild of the organ of Exeter Cathedral.  At St Paul's, the stop was a gift of Henry Willis at the time of the 1930 rebuild, the pipework being bought in from America and placed with 30 inches of wind pressure in the North East Quarter Gallery in the Dome.  The Liverpool trompette militaire was the gift of Professor Alan Dronsfield and was installed in the Corona gallery, 100 ft above the cathedral floor, in 1997.  Until comparatively recently, the organ of Exeter Cathedral also had a trompette militaire in the minstrels' gallery above the nave.  In the most recent rebuild of the Exeter instrument the stop has been renamed simply "trompette" and has been complemented with a diapason chorus forming a nave division, all playable from the main console on the medieval screen. Walter de Stapledon (or Stapeldon) (1 February 1261 – 14 October 1326) was Bishop of Exeter 1308–1326 and twice Lord High Treasurer of England, in 1320 and 1322.  He founded Exeter College, Oxford and contributed liberally to the rebuilding of Exeter Cathedral.  His tomb and monument, of great architectural importance, survives in Exeter Cathedral. The Devon and Exeter Institution is a subscription library in the City of Exeter, Devon, founded in 1813 for "The general diffusion of science, literature and the arts".  It is situated at 7, Cathedral Close, Exeter, in a building facing the north side of Exeter Cathedral which was formerly the Exeter townhouse of the Courtenay family of Powderham Castle. Agnes Prest (died 15 August 1557) was an English Protestant martyr from the reign of the Catholic Queen Mary.  She was burned at the stake at Southernhay in Exeter in 1557.  According to "Foxe's Book of Martyrs", and the story of Exeter Protestant Martyrs she lived near Launceston, Cornwall, and was married to a Catholic husband.  She left her husband over his Catholicism, and went to be a spinner but she later on returned to him and was arrested and indicted at the Launceston Assizes.  She was then put in Launceston jail and then transferred to Exeter jail.  In Exeter prison, she was brought before the Bishop of Exeter, bishop Turbeville.  When questioned, she denied the Catholic doctrine of Transubstantiation.  She was then released for a month.  Whilst she was released, she is said to have met a Dutch stonemason in Exeter Cathedral who was repairing the statues of the saints beloved of the Catholics.  According to Foxe, she said to him "What a madman art thou, to make them new noses, which within a few days shall all lose their heads".  After that point she was returned to jail where she had many visitors, including Walter Raleigh's mother, Catherine Raleigh who praised her for her 'Godly life'.  She was then tried for heresy by the Mayor of Exeter, refused to recant her beliefs and was executed by being burnt to death on the 15th August 1557. . Richard Sydnor was the Receiver and Steward of Bishop Oldham of Exeter Cathedral from 10 Henry VII (1505) to 5 Henry VIII (1514) - see Exeter Cathedral MS. 3690.

Supporting sentences:
 His body of composition spans 27 years, though consistently explores his fascination with both Anglo-Saxon texts (from "The Exeter Book") and the natural world. The Exeter Book, Exeter Cathedral Library MS 3501, also known as the Codex Exoniensis, is a tenth-century book or codex which is an anthology of Anglo-Saxon poetry.  The book was donated to the library of Exeter Cathedral by Leofric, the first bishop of Exeter, in 1072.