Born to the Italian nobility. Priest. Canon of the catehdral of Bologna, Italy. Augustinian canon c.1104. Chosen bishop of Pavia, Italy c.1139, but adamantly refused the appointment, citing his inadequacy to the task. Elevated to cardinal–bishop of Palestrina in 1144 by Pope Lucius II.
- 1159 of natural causes
- “Saint Guarinus of Palestrina“. CatholicSaints.Info. 5 February 2017. Web. 30 April 2017. <>