Brambles might be Bramble(s)town, a townland in the civil parish of Dungarvan, Co Kilkenny. It’s a mile or two east of Dungarvan village. In the RC parish of Gowran.
You would need parish records to find Michael’s birth and subsequent marriage as both were long before civil recording of births and marriages began (1864). According to this site, the local RC parish records start in 1809.