Annals of Ulster: Otherwise, Annals of Senat; A Chronicale of Irish Affirs From A. D. 431, to A. D. 1540. E-book. Formato PDF William Mac Hennessy   -  Forgotten Books, 2017  - 

Celestinus. — The writers in the Book of Armagh note him as qua dragensimus quintus a. Sancto Petro apostolo, fol. 2cc, 1600. But Proslier, Idatius, and Marcellinus, whom these ann. Profess to follow, have XLI.