also known as Petrus Cellensis, flourished in the fourth quarter of the 12th century as abbot of St. Remigius, and afterwards as bishop of Chartres. He published his Opera, containing Sermones, Liber depanibus, Mosaici tabernaculi mystica et moralis expositio, De conscientia, De disciplina claustrali, Epistolarum libri 9 (in Bibl. Max. Patr. 23:636), Tractatus de disciplina claustrali (D'Achery, Spicil. 1:452), Epistolarum libri 9 (Sirmondi Opera Varia, 3:659).