The Baptism of St. Pancras
Church of St. Pancras, Dossenheim, Germany
In the Golden Legend Pope Cornelius baptizes St. Pancras along with his uncle Denis, who is most likely the man on the right with the graying beard. The real Pope Cornelius served from 251 to 253, several decades before the presumed date of Pancras's birth.
Read more about St. Pancras.
Source: Wikimedia Commons