Some more on the painter : He was actually Sane gjaki/Sandjaki, which is a corridor region created as a buffer caused by the fear of panslavism in which the majority of to the Islam converted people live when the Ottoman empire had to withdraw from South East Europe conform the Treaty of San Stefano:
https://en.wikipedia.org/wiki/Treaty_of_San_Stefano
https://en.wikipedia.org/wiki/Sanjak
Hence he was not a Serb as such and his name was Paja Jovonovi, which slavesized became Jovanovic