Thomas Damett was an English

England

England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west, with the North Sea to the east and the English Channel to the south separating it from continental...

 composer of the late Medieval

Medieval music

Medieval music is Western music written during the Middle Ages. This era begins with the fall of the Roman Empire and ends sometime in the early fifteenth century...

 and early Renaissance

Renaissance music

Renaissance music is European music written during the Renaissance. Defining the beginning of the musical era is difficult, given that its defining characteristics were adopted only gradually; musicologists have placed its beginnings from as early as 1300 to as late as the 1470s.Literally meaning...

 eras.

The illegitimate son of a gentleman, he was a commoner at Winchester College

Winchester College

Winchester College is an independent school for boys in the British public school tradition, situated in Winchester, Hampshire, the former capital of England. It has existed in its present location for over 600 years and claims the longest unbroken history of any school in England...

 until 1406-7 and became rector of Stockton, Wiltshire, in 1413. His name appears occasionally in the Royal Household Chapel accounts between 1413 and 1430-31. Nine works by him - six mass movements (including a Gloria-Credo pair based on a Square) and three motets (one isorhythmic) - survive in the Old Hall Manuscript

Old Hall Manuscript

The Old Hall Manuscript is the largest, most complete, and most significant source of English sacred music of the late 14th and early 15th centuries, and as such represents the best source for late Medieval English music. The manuscript somehow survived the Reformation, and until 1873 belonged to St...

and may be autographs.