Jean DeLatre
Born: 1505
Died: 1569
Nationality: Flemish
Petit Jean De Latre or Joannes de Latre (his surname is also recorded as Delattre, Delatre, De Lattre and Laetrius) was a Flemish Renaissance composer and choirmaster who worked in Liège and Utrecht. He is no longer believed to be same person as Claude Petit Jehan who died in 1589.
Read more at https://en.wikipedia.org/wiki/Jean_de_Latre