He wrote under the patronage of Gaston Phoebus, Count of Foix, and Peter the Ceremonious, King of Aragon.
The Pedro who was a jongleur of the count of Foix, mentioned in an Aragonese register of June 1357, may be Peyre de Rius.
Peyre appears frequently in the court registers of Aragon for the years between 1361 and 1381, often changing his precise occupation and his patron.
In February 1373 he and Jacme Fluvia, both titled trobador de danses (or dançes, "composers of dansas"), received gifts from the queen, Eleanor of Sicily.
Martín de Riquer, who gave the piece its first modern edition, could not identify Peyre's dialect nor his place of origin on the basis of his language.