Johannes Ockeghem (also Jean de, Jan; surname Okeghem, Ogkegum, Okchem, Hocquegam, Ockegham; 1410/1425 – 6 February 1497) was the most famous composer of the Franco-Flemish School in the last half of the 15th century, and is often considered the most influential composer between Guillaume Dufay and Josquin des Prez. In addition to being a renowned composer, he was also an honored singer, choirmaster, and teacher.
The spelling of Ockeghem's name comes from a supposed autograph of his which survived as late as 1885, and was reproduced by Eugène Giraudet, a historian in Tours; the document has since been lost. In 15th-century sources, the spelling "Okeghem" predominates.
Ockeghem is believed to have been born in the walloon city Saint-Ghislain, Netherlands (now Belgium). His birthdate is unknown; dates as early as 1410 and as late as 1430 have been proposed. The earlier date …Read more on Wikipedia