Here Peire is portrayed as a knight of Santiago

"Pere Guillem was from Toulouse. . ."
He is portrayed here as a monk.

Peire Guillem (or Guilhem) de Tolosa was a 13th-century troubadour from Toulouse. Only one sirventes he wrote ("En Sordel, que us es semblan"), a tenso with the contemporary Italian poet Sordello, survives.

According to his vida he was a courtly man who loved high society. The author of the vida also expresses admiration for his couplets but bewails the excessive number he composed, though so few of his works survive to this day. He was also said to have composed sirventes joglarescs, or sirventes in the manner of joglars, in order to criticise "the barons" (presumably the high noblesse). He also wrote a work criticising the prolific trouvère Theobald I of Navarre.

The troubadour Bertran Carbonel twice mentions another troubadour by the initials P.G., possibly indicating Peire Guilhem. He mourns a certain P.G. in a planh, where the initials probably stand in the manuscript for a full name, since three syllables would be required by the metre. Perhaps Pey Guillem, Pey being a hypocoristic form of Peire, is intended. In another case Bertran directs a sirventes of admonition against a troubadour identified only by his initials: .P. / ponchat et enapres un .G..

According to his vida he entered the "Order of Spaza", probably the "Order of the Sword", meaning either the Order of Santiago or the Order of the Faith and Peace.

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