A great many of your fellow Americans, including some Iowans, have already done the searching for you
It will help if you spell the name correctly as Siena, but even misspelled you can find your way to the heart of Tuscany, where Siena aintains all its charm, architecture, cuisine, and medieval heritage that makes it the place in Italy that you do not wish to miss. One you visit, you won't be content until you get back.
The center-piece of Siena's heritage is St Catherine of Siena, Italy's patron saint. One of the most influential figures of the early Renaissance, and one of the notable women of history (who doesn't get much press any more because she doesn't fit the feminist image, had other kinds of policitcal skills & savvy).
Siena College in Loundonville, NY, outside Albany, a Franciscan school, was NOT named in honor of St Catherine...different order.
