Franjo Mraz was a notable Croatian artist. Together with Ivan Generalić and Mirko Virius, he is considered a founder of Croatian naive art. His most famous paintings are "Oranje" ("Ploughing") and "Zima" ("Winter"). Wikipedia
The definitive Wikipedia entry for Franjo Mraz. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Franjo_Mraz