Guillaume Dufay (Du Fay, Du Fayt) (August 5, 1397? -- November 27, 1474 in Cambrai) was a Franco-Flemish composer of the early Renaissance. As the central figure in the Burgundian School, he was the most famous and influential composer in Europe in the mid-15th century. From the evidence of his will, he was probably born in Beersel, in the vicinity of Brussels. He was the illegitimate child of an unknown priest and a woman named Marie Du Fayt. Marie moved with her son to Cambrai early in his life, staying with a relative who was a canon of the cathedral there. Soon Dufay's musical gifts were noticed by the cathedral authorities, who evidently gave him a thorough training in music; he studied with Rogier de Hesdin during the summer of 1409, and he was listed as a choirboy in the cathedral from 1409 to 1412. During those years he studied with Nicolas Malin, and the authorities must have been impressed with the boy's gifts because they gave him his own copy of Villedieu's Doctrinale in 1411, a highly unusual event for one so young. In June 1414, at the age of only 16, he had already been given a benefice as chaplain at St. Géry, immediately adjacent to Cambrai. Later that year he probably went to the Council of Konstanz, staying possibly until 1418, at which time he returned to Cambrai.