Saragossa Terra (Iapetus)

Named after the Town held by Marsilion, eventually taken by the French.

Saragossa Tera is the name given to the southern part of the highly reflective half of Saturn's moon Iapetus. It is bordered on the north by Roncevaux Terra, and on both the east and west sides by Cassini Regio. (wikipedia entry)

A terra is an extensive land mass.