
1) Name used by five popes 2) One of five popes 3) One of five popes, ironically
Found on
https://www.crosswordclues.com/clue/sixtus

Sixtus was a Roman name, a corruption of the Greek name `Ξυστος,` meaning `polished,` and originally Latinized `Xystus.` In its Spanish form Sixto it is still used as a personal name. It is not to be confused with the common Roman praenomen `Sextus,` meaning `sixth,` though not necessarily denoting a sixth child. Notable people nam...
Found on
http://en.wikipedia.org/wiki/Sixtus
No exact match found.