St. Xystus

 As I said before, doing an alphabetic list of Saints poses some challenges. Today we are on the letter 'X' and I have cheated - just a little.

Pope St. Xystus I is better known by the Latin spelling of his name, Sixtus. Xystus was the first of six popes of this name. He was the sixth Pope after St. Peter, leading to speculation that the name (meaning "sixth") is fictitious. 

Pope Xystus was a Roman of Greek descent. He reigned as Pope from about 115 to about 124. During his papacy he instituted several liturgical and administrative traditions. In the "Felician Catalogue" of popes and several martyrologies he is given the title of martyr, but nothing more is known about how he died. Like most of his predecessors, he is believed to have been buried near St. Peter's grave on Vatican Hill. His feast day is April 6.