Thank you everyone for the info.
The info regarding Stefan Kovatsch from Grabatz is in the Zichydorf Family Book as well. There are many with the surname and sadly many unlinked. Doesn't appear to have any relationship to my Martin Kovatsch.
@Tibor - I reread the entry for Anna Maria Muller and it says "Lebensorte" Morawitz and Zichydorf so you are correct, very doubtful she was born there, probably lived there shortly before moving to Zichydorf. Sorry for the confusion.
@Glenn - my Kovatsch ties/relationship ended long ago (6 generations). I'll take a look at the digital church images to see if I can find any more clues there.
Stephen