Looking for My Great Grandmother Mary Broese

Mary Broese was born 28 January 1860 somewhere in Bavaria, migrated to the United States and got married 25 May 1883.Someone told me her father's name was Fred.So far, I cannot find the city in Bavaria that she came from.My Great Grandfather Michael Weinfurtner (Mary's husband) came from Kollnberg.
Does anyone have any details on Mary Broese?