[1] When he was transferred to Lyon, Peter wrote him a laudatory letter, in which he thanks divine providence for raising Peter "from the valley of Viviers to the mount of Lyon, a high place to a still higher place".
[3] In 1129, in cooperation with the bishops of Die and Grenoble, Peter intervened to end the conflict between Silvion II, lord of Clérieu, and the collegiate church of Saint-Barnard de Romans.
In 1130, Pope Innocent II recruited Peter to judge the case of the church of Bessan, disputed between the abbeys of Saint-Thibéry and La Chaise-Dieu.
[5] In 1139 Pope Innocent sent him as legate to the Kingdom of Jerusalem to settle a dispute between Patriarch Ralph of Domfront and the canons of the Antioch.
William of Tyre, who calls him "a man of a venerable life, simple and God-fearing, but old and now verging on senility" in his chronicle, raises the spectre of poisoning.