
1) Church Fathers
Found on
https://www.crosswordclues.com/clue/pierius

Pierius was a Christian priest and probably head of the Catechetical School of Alexandria, conjointly with Achillas. He flourished while Theonas was bishop of Alexandria, and died at Rome after 309. The Roman Martyrology commemorates him on 4 November. His skill as an exegetical writer and as a preacher gained for him the appellation, `Origen the....
Found on
http://en.wikipedia.org/wiki/Pierius

(from the article `patristic literature`) ...tradition was maintained by several remarkable disciples. Two of these whose works have been entirely lost but who are reported to have been ...
Found on
http://www.britannica.com/eb/a-z/p/66
No exact match found.