Mirica is a minor character in Téa Obreht's "The Tiger's Wife," which takes place in unnamed Balkan countries (as determined by geographic locations mentioned within the story, most likely Serbia and Croatia).
Came across this name while looking up "peaceful" names. I find this name to be very strong, with a very wonderful meaning. Plus, the name is Croatian, and I am of Croatian descent. Tee hee. :)