Reigned c.106to 115. Probably born in Rome, Italy; died there. He was the fifth successor of Saint Peter. As commemorated in the ninth lesson of Nocturn for his feast, he inserted in the Canon of the Mass the words commemorative of the institution of the Eucharist beginning "Qui pridie," introduced the use of holy water for blessing Christian homes, and suffered martyrdom. He is represented with his chest pierced with nails or spikes. Feast, Roman Calendar, May 3,.