The Catholic Church officially names all its dioceses* in Latin, but they can be maddeningly inconsistent with translations of local names.
For example, in the United States, you'll find an Archidioecesis Ludovicopolitana, a Dioecesis Petriculana, and a Dioecesis Rubribaculensis, but you'll also find a Dioecesis Bridgeportensis and a Dioecesis de Fairbanks.
Why does Santa Fe become Sanctes Fides, but Las Cruces stays Las Cruces? Shouldn't Iowa have something like Monachi? And why do I live near Xylopolis?