Dragutin Domjanić (Adamovec 12th Sept 1875 - Zagreb 7th June 1933), Croatian kajkavian poet and writer, he was the 1st to seriously introduce the rhytmical kajkavian dialect into Croatian poetry and literature as an equated pair to the formally used language.
http://en.wikipedia.org/wiki/Kajkavian_dialect
He is also the author of the famous but internationally little known marionette play Petrica Kerempuh, a satiracal review of Croatian intelectuals in the 20s.