Ragnarok's list "Popes' Names" of 5 great name ideas: Sabinian - Zosimus!

Popes' Names

English or Latin names of Roman Catholic popes.

Sabinian

More commonly spelled as Sylvester in English speaking countries, Silvester is closer to its Latin origins silva . Sharing a root with Silas, Sylvia, and Sylvie, this form saw occasional use in the US in the early 20th century, and may be used in Slavic countries, such as Czechia and Slovakia

Silvester

Soter

Urban was not an uncommon name through the 1930s (rising as high as Number 435), having been attached to several saints and early popes, but it has completely disappeared from the landscape--both urban and rural. Yet in this era of word name appreciation and trend for 'an'-ending boys' names, we're thinking it might be ready for a return.
 In the New Testament, Urban is an active member of the Christian church in Rome.
 Urbano is the commonly heard Italian version, and the French Urbain was used by Henry James for an--yes--urbane character in The American.
 These days, the name is associated with musician Keith Urban.