St. Linus

Pope Saint Linus

1st c. Native of Tuscany. Succeeded St. Peter as Pope. Mentioned by St. Paul in second letter to Timothy

More information about St. Linus:

Pope Saint Linus on Caput Mundi

St. Maternus

St. Maternus – 4th c. Bishop. Worked against the Donatist heresy. Legend has him as a resurrected disciple of St. Peter.

More information on St. Maternus:

St. Maternus on Wikipedia
Stained glass in the Cologne Cathedral 
Butler’s Lives of the Saints via Google Books